RTS | Bp-300 | manual | MODEL BP-300 - RTS Intercom Systems

MODEL BP-300 - RTS Intercom Systems
User Manual
MODEL BP-300
Portable Belt Pack User Station
9350-1786-00 Rev H
09/2006
PROPRIETARY NOTICE
SHIPPING TO THE MANUFACTURER
The product information and design disclosed herein were originated by
and are the property of Telex Communications, Inc. Telex reserves all
patent, proprietary design, manufacturing, reproduction, use and sales
rights thereto, and to any article disclosed therein, except to the extent
rights are expressly granted to others.
All shipments of product should be made via UPS Ground, prepaid (you
may request from Factory Service a different shipment method). Any
shipment upgrades will be paid by the customer. The equipment should
be shipped in the original packing carton. If the original carton is not
available, use any suitable container that is rigid and of adequate size. If
a substitute container is used, the equipment should be wrapped in paper
and surrounded with at least four (4) inches of excelsior or similar
shock-absorbing material. All shipments must be sent to the following
address and must include the Proof of Purchase for warranty repair.
Upon completion of any repair the equipment will be returned via
United Parcel Service or specified shipper, collect.
COPYRIGHT NOTICE
Copyright 2006 by Telex Communications, Inc. All rights reserved.
Reproduction, in whole or in part, without prior written permission from
Telex is prohibited.
WARRANTY NOTICE
See the enclosed warranty card for further details.
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
RTS/Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, MN 55337 USA
Telephone: 800-392-3497
Fax: 800-323-0498
Factory Service: 800-553-5992
RETURN SHIPPING INSTRUCTIONS
Customer Service Department
Telex Communications, Inc. (Lincoln, NE)
Telephone: 402-467-5321
Fax: 402-467-3279
Factory Service: 800-553-5992
Please include a note in the box which supplies the company name,
address, phone number, a person to contact regarding the repair, the type
and quantity of equipment, a description of the problem and the serial
number(s).
Factory Service Department
Telex Communications, Inc.
8601 East Cornhusker Hwy.
Lincoln, NE 68507 U.S.A.
Attn: Service
TABLE OF CONTENTS
PROPRIETARYNOTICE
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2
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COPYRIGHTNOTICE
PATENTNOTICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
WARRANmIWORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
UNPACKING AND INSPECTION
RETURN SHlPPING INSTRUCTIONS
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SECTION 1: DESCRIPTION AND SPECIFICATIONS
.................................. 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
SPECIFICAlIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.1DESCRIFTON
1.3
SECTION2.INSTALLATION
................................................ 7
...... 7
2.2 TYPE OF MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 CHOOSING HEADSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4CABLINGREQULREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.4.1 WIRE SIZE AND MAXIMUM OPERATING DISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 POWER REQUlREMENTS. TYPE OF SYSTEM. POWERING METHOD AND POWER SUPPLY(IES)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.6SYSTEMCHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
.
2.7 STANDARD USER STATION CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5MECHANICAL
SECTION3.OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.1 OPERATING CONTROLS AND CONNECTORS
3.2 OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.
SECTION 4: REPLACEMENT PARTS
4.1 WHERE TO OBTAIN PARTS
4.2 MECHANICAL PARTS
4.3 ELECTRICAL PARTS
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SECTION 5: DIAGRAMS 1 DRAWINGS
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MICROPHONE
Page 4
0
SECTION 1: DESCRIPTION & SPECIFICATIONS
1.1 DESCRIPTION
The Model BP300 is a portable, two-channel intercom user station. The user station is designed to be
used in a full duplex, conference line intercom system.
Conference Line Intercom Svstem (Figure 1-1)
A conference line intercom system allows a group
of people t o talk and listen on a single channel.
On this channel, all users can listen when one or
more other users are talking (conferencing). Up
to 75 users can share the same conference line (or
conference bus).
The momentaty push button allows quick 'bursts of
communication, especially useful in a high noise environment. The latched position allows "hands freen
operation, when the user needs to have two way
conversation while performing another activity.
The Channel Select Switch
A channel selector switch allows a choice of two
(optionally three) channels. When the switch is on
the "1"position the station talks and listens on channel 1, on the "2"position, channel 2, and so on. On
larger systems the "1" position may be any system
channel (1 through 12 for example). Similarly, for
position "2". See Section 2.1 for DC powering requirements under these conditions.
Call Light Push Button (BP300L, only)
Full duplex operation allows two way conversation
at the same time, that is, one user can interrupt a
second user while the second user is still talking.
3
The BP300, with a headset, interfaces a human user
t o the intercom system. The user talks and listens
using the headset (or a handset). The headset connects to the BP300 via a four conductor cable and
connector (optionally five or six pin). The BP300
connects to the system using a three conductor
"microphone" type cable. The BP300 contains four
controls: the volume control, the latching microphone switch, the momentary microphone switch,
and the channel select switch. On the Model
BP300L, the momentary microphone switch is replaced with the call light button.
Volume Control
The volume control on the BP300 has a wide range
to compensate for: user hearing differences, ambient noise variation, variations in headset / handset
sensitivity, and variations in voices. The volume
control in the BP300 reduces distortion by driving
the headphone amplifier only as much as needed.
Microphone Switch(es1
( )
L
l
'
In normal system operation, one or more users talk
and the others listen. A microphone switch on each
station allows the talker's microphone to be enabled
and allows the listeners to keep their microphones
disabled. In this condition, speech intelligibility is enhanced since background noise from other microphones is not present.
Pushing this button transmits a call signal to all other
units on the channel selected by the channel selector
switch. A call signal on this channel will cause the call
light push button to flash. The flash rate is 2 to 5
times a second. The call signal itself is a 20 kilohertz
signal.
Options (-DL, -E, -3CH, -USMB, -LP)
The BP300 and BP3OOL use the CC33 card except as
indicated below. Codes at the end of each aragraph
indicate the card used. Codes are: *CC33 car$ **CC4O
card, ***CC45 card. (CC33 schematic is SD1464;
CC40/CC45schematic is SD1427).
-DL: Dual Listen on two channels. The volume control is
changed to a dual concentric potentiometer with two knobs.
The channel select switch routes the talk signal. The outside
knob follows the channel selector. The inside knob is the
non-talk, listen only channel.
-E: Program Input, balanced. Deletes line loop-through,
the balanced program is fed in instead. Pins 2 and 3 are the
input connections. A dual concentric potentiometer with
two knobs provides separate level controls for interwm and
program.
-3CII: Three CHannel operation. Line and loop-through
connectors are changed to 4-pin from 3-pin. A 3-position
channel select switch replaces the 2-position switch.
-USMB: UnSwitched Microphone output, Balanced.
Deletes line loop-through. Level: -7dBm to S3dBm. The
USMB provides a line level microphone signal to other
systems such as an Interrupted Feedback System (IFB),
telephone, radiotelephone, or Stage Announce.
-LP: Local Power source. A small module converts AC line
power to low volta e to wer the user station, a separate
connector is provib;d. #e unit does not use power from
the interwm line.
On the Model BP300, a latching switch or momentary
push button turns the microphone on.
Page 5
1.3 BP300 SPECIFICATIONS
Current Source
Input DC Voltage
TW Mode
LP Option
Battery
18 to 35 volts DC
15 to 35 volts DC
12 to 35 volts DC (reduced
performance)
DC Current Drawn from TW Line (Note: LP Option draws
no current from TW line)
23 milliamperes 210%
BP3OOL
33 milliamperes 210%
37 milliamperes 2 10%
BP3OOL
45 milliamperes 210%
A 5 milliamperes into 200 ohms
= -c 1volt peak, nominal
Voltage Gain
Output Voltage
34 dB
8 volts peak-to-peak into 25 Cl
Output Power
112watt peak into 25 ohms
Headphone
Impedance Range
25 to 600 ohms (600 to 2000 with
reduced levels)
NOTE: DO NOT USE HEADPHONES WITH
IMPEDANCES LESS THAN 25 OHMS.
Operating, 25 ohm headphones + Call Light
BP300L
Output
Frequency Response 150 hertz to 8 kilohertz -t 3 dB
Operating, 25 ohm headphones
BP300
3.3 milliamperes / volt
= 3.3 millislemens
I-leadphoneAmplifier
Quiescent
BP300
Transfer Ratio
Sidetone
Adjustment Range
60 milliamperes f10%
-
20 dB to full on
Call-Light
Impedance Across Line
10,000 ohms, minimum
Signaling Frequency 20,000 hertz f 100 hertz
Flashing Rate
Environmental
Auxiliarv Connections
Temperature
Operating
0.C to 60°C
Storage
- 40°C to 85°C
Headset Connector
Dynamic Microphone XLR type 4-pin female
Carbon Microphone 114" standard phone jack,
3 circuit
Humidity
Operating & Storage
5 hertz A 2 hertz
5% to 95% non-condensing
Line Connections
Noise Contribution
One unit
-75 dBu
Ten units:
-67 dBu
Input
XLR type 3-pin female
Loop/External
XLR type 3-pin male
Mechanical
Microphone Preamplifier
Dimensions
6.00 H x 3.50 W x 1.75 D inches
152.4 H x 88.9 W x 44.5 D, millimeters
Input Impedance
470 ohmsldynamic mic
Weight
1.0 pounds, 0.45 kilograms
Source Impedance
200 ohms, nominal
Finish
Clear, anodized aluminum
Maximum Input Level 150 millivolts
SPECIFICATION NOTES:
Fre uency Response
q-54 dBu input)
100 hertz to 10 kilohertz k 3 dB
0 dBu = 0.775 volts rms.
Limiter Range
30 dB
0 dBm = 1milliwatt = 0.775 volts rms. into 600 ohm load
(0 dBu, open circuit)
Carbon Mic
Excitation Current
10 milliamperes, nominal
Note: All products and specifications subject t o
change without notice.
Pagc 6
lo
I
voltage, cable resistartce, and surges. A more prudent
approacli is to operate ti= system at no more than 80% of
capacity.
SECTION 2: INSTALLATION
Follow the directions: "To Install the BP300n,below.
2.1 Power Requirements, Type Of System, Powering
Method And Power Supply(ies)
I
Power Requirements
To maintain a bridging 10,000 ohms impedance to the
intercom line, the BP300 requires +18 to +35 volts
DC. To operate in local power or battery modes, the
BP300 requires from +15 to +35 volts DC, but is
operable at reduced performance from +12 to 17.9
volts. Below that voltage, a safety circuit disables the
microphone switch on the CC33 board.
+
In (3) above, a local power supply provides 12 to 24
volts DC at 120 milliamperes peak for each station,
or, for remote single station operation, two 9-volt
batteries in series may be used.
In (1) and (3) above, the two wires carrying the audio
requlre one system termination consisting of a 200
ohm resistor and a 100 microfarad capacitor in series.
This combination is connected across the two wires.
If the capacitor is polarized, its negative terminal is
connected to the system circuit common.
To Install the BP300:
Twe of System
The BP300 can be installed in a (1) three wire system,
(2) two wire system, or (3) special two wire system.
power in^ Method
Power is carried to the unit from a system power
supply using three different methods:
(1) In a three wire system ("Series 17n type), the
power is separate from the audio and supplied
by a central power supply.
the power and
(2) In a two wire system ("TW-e),
audio may share the same wire. The power is
supplied centrally by a special "TW" type power
supply-
(3) In a special two wire system (Local Power), each
BP300 is locally powered and operates on switch
channel two. The BP300s are interconnected
using two wire cable. Power is supplied by a battery or a local power supply. The local power
supply should be isolated from earth ground.
1. Determine the type of system in which the BP300
is to be installed. Determine the powering
method and power supply(ies).
2. Determine the mounting of the BP300: Portable
or Permanent.
3. Read "Choosing Headsets or Handsets".
4. Determine the cabling requirements.
5. Create a system block diagram & equipment list
(if not already available), then install the system.
6. Verify correct system operation by using the
checkout procedure in this chapter (02.6).
Update the system block diagram, equipment list
and any other documentation to reflect the "asinstal1ed"configuration. If the system block diagram was originally created by RTS Systems, send
a copy of the "as installednsystem block diagram
to RTS Systems. This diagram will be used to update the original documentation, and for future
service support.
In (1) above, the power supply is a regulated supply,
24 volts DC to 32 volts DC, 1.5 amperes. This supply
can operate up to 50 BP300 and 30 BP300L user stations.
For case (2) above, assuming the currents shown, the
power supplies versus maximum number of stations
powered are:
Power Supply
BP300 (37mA) BP300L (60mA)
Model PS8 (j.43AI
Model PSI5 1.OA
Model PS3l 1.5A
11
27
41
7
16
25
N&: Operaiwn of a system at maxitnutn load docs not
allow for other variations such as lemnperaturc, litw
2.2 Type Of Mounting
(1) One type of mounting for the BP300 is portable,
when it is worn on clothing or an equipment belt.
(2) Another type of mounting for the BP300 is
permanent or semi-permanent, either a "desk
mountn (sitting on a desk) or fastened to furniture. Avoid placing the BP300 on a metal or
grounded metal surface. Contact between the
Model BP300 and metal surfaces may cause
unwanted noises on the intercom line.
Page 7
23
is 23 milliamperes for the BP300,33 milliamperes for
the BP300L).
Choosing IIeadscts
Introduction Headset or handset choice depends on
operating environment, operating requirements, and
personal taste.
Operating Environment Table 2-1 shows typical operating environments and the amount of background
noise present.
A very quiet operating environment, such as a
television studio, may require that sound does not
leak from the headphones, meaning the headphones
should have good "acoustic isolation".
A very noisy or loud environment usually requires
headphones that prevent outside sound from leaking
in (again, good acoustic isolation), headphones that
can produce a loud, clear sound, and noise cancelling
microphones, as well.
Understanding speech in a noisy environment requires that the sound from the headphones is as loud
or louder than the sound leaking into the headphones
from the noisy environment.
Loudness In general, the loudness of a headphone
depends upon its ability to absorb power at a given
voltage (impedance) and the efficiency of its design.
Practically, the impedance has a larger effect with
present day headsets.
Impedance Low impedance headphones are louder,
causing the BP300 to draw more current from the
power supply. High impedance headphones are not
as loud, drawing less current from the power supply.
The BP300 design range of impedances for the headphone part of the headset is 25 ohms to 600 ohms.
Headphone impedances 600 to 2000 ohms will operate at reduced levels. In a double muff headset such
as the Beyer DT109 sold by RTS Systems, there are
50 ohm headphones connected in parallel resulting in
an impedance of 25 ohms.
Efficiencv The BP300 produces the loudest sound in
low impedance headphones such as the DT109. In
this headphone, one milliwatt of electrical power
produces 94 dB SPL (Sound Pressure Level).
Practical Loudness The BP300 / BP300L can produce an SPL of 111 dB in each ear of a DT109 or
DT108 headset. Low impedance headsets such as the
DT108 and DT109 headsets, cause the BP300 /
BP300L to require more power from the power supply. With DT109 headsets, BP300 peak current is 75
milliamperes.
BP300L peak current is
80 milliamperes. With 600 ohm headphones, peak
current is 30 milliamperes for the BP300,
40 milliamperes for the BP300L. (Quiescent current
Headphone Sound Isolation
The ability of headphones to shut out unwanted environmental noise varies from none (0 dB isolation) to
about 118th as loud (30 dB isolation). The degree of
isolation depends both on the design of the headset
and the frequency content of the environmental
noise. Lightweight, "open" headsets such as the RTS
Systems LH267 (single muff) and LH268 (double
muff), have almost no (0 dB) isolation. The trade-off
is that the LH267LH268 are very comfortable and
can be worn for long periods (8 to 12 hours) without
physical discomfort from the earmuffs or headband.
The LH267LH268 are low impedance and can be
turned up loud.
Because there is less acoustic isolation, care must be
taken that the sound signals from the LH267LH268
are not unintentionally leaked into microphones.
The DT108PT109 headsets have an isolation ranging from 10 dB to 20 dB.
At least four companies, Telex, Setcom, David Clark,
and Carter Engineering sell headsets intended for
heavy industrial, aerospace, and military markets.
These headsets can provide acoustic isolation figures
of 20dB to 40dB. Generally speaking, these headsets
are heavier and less comfortable to wear.
Isolation, Headset Microvhones
In high noise environments, the headset microphone
should be a noise cancelling type.
Comfort In general, the comfort of headsets depends
upon their weight, padding and design.
In the headset connecting cable, prevent coupling between the microphone and headphone leads by using
at least a shielded wire for the microphone, and a
separate pair of wires for the headphone(s). Better
isolation may be possible with a twisted, shielded pair
for the microphone leads. Do not allow headphone
ground to contact microphone ground or shield. Tie
the shield to microphone ground or microphone low.
Do not tie the shield to the case of the connector or
the case of the user station. In general the maximum
length for the headset cable is ten feet (3.1 meters).
Lengths over ten feet require a special extension
cable. Check with RTS Systems for help with longer
cables.
Page 8
2.4. Cabling Requirements
2.4.1 Wire Size and Maximum Operating Distance
Another benefit of not "earthn grounding the circuit
return is that it prevents the introduction'of'noise
through "earth" currents from other equipment. If
the RTS Systmes circuit ground conducts these
currents, it is likely that they will be heard as
interfering noise on the communication line.
Wire s u e determines the maximum operating distance (where the DC voltage drop is the limiting factor). The following equations apply for a conductor
s u e of #22 AWG, a minimum user station voltage of
18.0 volts, and a minimum power supply voltage as
stated below.
The number of conductors required to interconnect
user stations is:
For Models PS10, PS30, PS31, PS50, PS60 (Vmin =
28.4 W C ) :
No. of
Conductors
Distance,,
Distan%,
No. of
Channels
(feet) = 322,181 / Itot (milliamperes).
(meters) = 99,133 /Itot (milliamperes)
For Models PS8, PSI5 (Vmin = 24.0 VDC):
Distanc&,
Distan%,
2.43 Signal
Wirin~ICabling(See Cable Wiring Diagrams in Section 7, Application Information)
(feet) = 185,874 /Itot (milliamperes)
(meter) = 56,654 / Itot (milliamperes)
Two channel "TW" applications, or single channel,
three wire applications may use either standard miExample: The BP300L with 25 ohm headphones uses crophone cabfe (for conveGence) or two-twisted-pair
up to 60 milliamperes. With a PS8 supply the maxi- cable (less expensive than microphone cable). Stanmum operating distance for this station is 185,874160 dard wire s u e for the system is #22 gauge wire for
milliamperes = 3098 feet (944 meters). And with a interconnection. For permanent installations each
PS31 power supply the maximum operating distance channel should have an individually shielded twisted
is 322,181160 milliamperes = 5370 feet (1652 meters). pair of at least #22 gauge wire; such as Belden 8723
The maximum operating distance using a PS8 power for 2 channels, and 8777 for 3 channels. For plenum
supply and a BP300 with 25 ohm phones (37 mA) is and / or 200" C wiring, use Belden 88723 and 88777.
The plenum cable has a slightly smaller diameter, is
185,874137 = 5024 feet (1531 meters).
Teflon insulated, and about three times the price of
*h
>.'
2.4.2 Grounding
System circuit ground should not be directly connected t o "earth" or "chassisnground (directly means a
connection an ohmmeter would show). Each user
station is bypassed to its own chassis via a 0.1 microfarad capacitor, establishing a radio frequency
(RF) ground to reduce radio frequency interference
from radio transmitters.
To prevent a buildup of voltage across the system capacitance, the power supply has a bleeder resistor to
chassis ground (22 kilohms). If the system has no
RTS Systems power supply, add a bleeder resistor at a
central point in the system.
Wire using Cable Wiring Diagrams, Section 7, to reduce interference and help maintain a low crosstalk
figure between channels.
The audio signal line level is between 10 dBu and
0 dBu (between 0.24 and 0.77 volts rms). These levels
are low enough t o prevent crosstalk into other equipment (such as TV cameras) yet high enough to minimize external interference to the TW System.
The 200 ohm line impedance is high enough to allow
communication over line lengths of 1.6 kilometers
(one mile) and low enough to permit an adequate
speech bandwidth with 3.2 kilometers of accumulated
The benefit of not "earthngrounding the RTS System cable. In most systems the 200 ohm impedance gives
circuit return is that continued o~erationis ~ossible a high fidelity bandwidth with low losses.
during an accidental system grouid fault. This accidental grounding can happen when a wire is pinched When using equipment in rain or conditions of excesor a cable scraped across a sharp edge. One acciden- sive moisture, always protect the equipment with plastal ground can be tolerated by the system until the tic covers and make sure all cable connectors are
fault can be cleared and (with luck) before a second lifted out of mud, snow or moisture and protected
ground fault can cause noise or overload or bring the with plastic. Water mud and snow in connectors can
cause noise.
system down.
Page 9
2.4.4 Channel to Channel Crosstalk Control
2.7 Standard User Station Connections
In the TW Intercom System all channels share a common circuit ground return. Crosstalk due to common
ground resistance can be reduced by using 22 gage
shielded cable, and paralleling shield drain wires with
circuit return wires. Capacitive crosstalk can be reduced by using two shielded pair. One wire of one
pair connects to channel one (pin 2), one wire of the
other pair connects to channel two (pin 3), the remaining wires are circuit return (pin 1). (See Cable
Wiring Diagram at back of manual).
Crosstalk reduction may also be achieved in some
cases using Model CCD 214 Crosstalk Cancellation
Device.
Dynamic Microphone headset connectors:
XLR-4-31 receptacle
Input level:
Output level to headphone:
Pin 1- Microphone low
Pin 2 - Microphone high
Pin 3 - Headphone low
Pin 4 - Headphone high
XLR-5-31 receptacle
Pin 1- Microphone low
Pin 2 - Microphone high
Pin 3 - Headphone low
Pin 4 - Headphone high, left
Pin 5 - Headphone high, right
2 5 Mechanical
The BP300 user station is either clipped to a user's
clothing for portable operation, or mounted on a
structure, camera or vehicle.
For permanent installation, temporarily remove the
electronicsfrom the case. Drill, deburr and fasten the
case as necessary, then reinstall the electronics.
An outline drawing for headset user station BP300 is
included at the end of the manual. This drawing provides mechanical information useful for permanent
and other type installations. This information includes overall dimensions, mounting information,
console cutout dimensions and weights.
It is recommended that space be.provided .for control
access, cabling and servicing, such as cabling service
loops, reaching XLR type connector locks, local
power option power supplies and headset connectors
and cables.
-55 dBu, nominal
10 volts peak-to-peak,
open circuit.
XLR-6-31 receptacle
Pin 1- Microphone low
Pin 2 - Microphone high
Pin 3 - Headphone low
Pin 4 - Headphone high, left
Pin 5 - Headphone high, right
Pin 6 - Microphone switch
Carbon Microphone Headset Connector: 114 inch phone
jack (52):
Carbon Microphone: Tip (-15 dBV input, nominal)
Headphone: Ring (10 V peak to peak open circuit)
Common: Sleeve
LINE input and LOOPIEXTension connectors: (J3lJ4)
If the headset connector is remoted, do not run this
cable close to interfering sources such as v i d e o m
monitors, power supplies and equipment with internal power supplies.
XLR-3-31 receptacle (for single-channel)
Pin 1- Common (low side of line)
Pin 2 - Power
Pin 3 - Channel
2.6 System Check
Using three beltpacks with three headsets and three
persons, verify that all persons can intercommunicate
throughout the system. Verify that with all microphone switches off and volume controls midway, only
a barely audible hiss is heard. The other two persons
should sound equally loud and clear to the third person.
XLR-3-31 receptacle (for two-channel line)
Pin 1- Common (low side of line)
Pin 2 - Channel 1(+DC)
Pin 3 - Channel 2
XLR-Q-31receptacle (for three-channel line)
Pin 1-Channel 1
Pin 2 - Channel 2
Pin 3 - Channel 3
Pin 4 - Common
Page 10
Table 2-1
Table 2-2
Typical Operating Environments,
Environmental Noise, Sound Pressure Level,
at 10 meters distance
Typical Operating Environments,
Sound Pressure Level,
at Ear
SPL
Source
Aircraft
120 dB to 160 dB
Orchestra, 75 piece, (Peaks) or
Pipe Organ, (Peaks)
Rock Concert
SPL
Source
Maximum Allowable
Impulse Exposure
140 dB
+
LH267 BP300,
10 db below Clipping
110 dB to 140 dB
+
140 db
114 db
Piano, Peaks
120 dB
DT109 BP300,
10 db below Clipping
111db
Blaring Radio
110 dB
Centrifugal Ventilating Fan
110 dB
LH268 + BP300,
10 db below Clipping
110 db
Auto on Highway
100 dB
Vaneaxial Ventilating Fan
90 dB
Voice, Shouting
90 dB
Factory
75 dB
Voice, Conversational
70 dB
+:Residence
Television Studio
Voice, Whisper
+
Setcom Series 5 BP300,
10 db below Clipping
45 dB
25 dB to 35 dB
30 dB
Page 11
99 db
Headphones with 20 db Acoustic
Isolation at 130 db Rock Concert
(Mouth Closed)
110 db
Headphones with 40 db Acoustic
Isolation at 140 db Rock Concert
(Mouth Closed)
100 db
Figure 3-1A
Front Panel, Model BP300 Portable Belt Pack User Station
CAR6 MIC
, H D S T ~
Figure 3-1U
Rcar Pancl, Modcl BP300 Portablc Bclt Pack Uscr Station
Page 12
SECTION 3: OPERATION
3.1 Operating Controls And Connectors
Table 3-1 below lists the Model BP300 user station controls and connectors. The reference numbers in Table
3-1correspond to the circled numbers in Figure 3-1A and Figure 3-1B.
Table 3-1
Ref No.
Name
1)
CHannel Select Switch 1 2 Selects 1of 2 channels (standard) or 1of 3 channels (optional). The
optional Call Light operates on the channel selected by this switch. The
CHannel select switch is omitted in the Single Channel (SC) option.
2)
MIC ON-OFF toggle
A latching-action switch.
3)
MIC ON-off push button
A momentary-action microphone enable switch on the Model BP300
(Standard - - without the Call Light option).
3)
CALL push button
(Optional) The CALL push button in Model BP300L (No momentary
mic).
4)
VOLUME
A headphone VOLUME control. (May be a dual control for the Dual
Listen (DL) or Program (E) option).
5)
DYNamic MICrophone
HeaDSeT Connector.
A dynamic microphone type headset plugs in here.
INPUT
Plug in the Line connector here. Connects the belt pack user station to
the TW intercom system.
7)
LOOP/EXTension
A convenience connector - - allows another belt pack user station to be
connected to the TW intercom system.
8)
CARBon MICrophone
HeaDSeT Connector
A carbon microphone type headset plugs in here. The headset may also
be a carbon microphone emulate type headset.
F3
u
Description
CAUTION!
Always turn the volume control all the way counterclockwise (to the left) before plugging in the headset
3.2 Operation (After connecting station to the intercom line and plugging in headset).
To communicate directlywith another station or stations:
1)
Turn the VOLUME control all the way counterclocliwise (to the left) before plugging in the headset.
2)
Select the channel using the CHannel select switch.
3)
Set the listening level in the headset using the VOLUME control.
4)
When you want to talk, set the MIC ONIOFF toggle switch to the "ONnposition (or push the MIC push
button) and speak into the microphone. Return the switch to the OFF position to eliminate unnecessary
noise on the intercom line.
Page 13
Figure 3-2
I%lockIliagram, Model RI'300
Page 14
SECTION 4: REPLACEMENT PARTS
ltem No.
4.1 WHERE TO OBTAIN PARTS
FRONT PANEL ASSEMBLY
*to Drawing #AS1787 for ltem No.
Description
Part No.
Back Panel
Connector, 4-Pin Female
Switch, Pushbutton
Lens, Mic On
Lug, Solder, #4
Screw, 4-40 X 318"
Nut, Hex, KEP 6-32
Parts may be obtained directly from Telex at:
TelexIRTS Systems
12000 Portland Ave. S.
Burnsville, MN 55337
877-863-4169
Fax: 800-323-0498
4.2 MECHANICAL PARTS
BACK PANEL ASSEMBLY
(Refer to Drawing #AS1788 for ltem No. locations)
Part No.
item NO.
Description
FINAL ASSEMBLY
(Refer to Drawing #AS1786 for ltem No. locations)
Description
part NO.
item NO. )
I
I
Front Panel Assy, BP300
PCB Assy, CC33
Back Panel Assy
Case
Screw, #8-32 X 112
Belt Clip
Rivet
Jack, Phone, 3-cond, Double
Closed Circuit
Cap, Gray With Dot
Knob, Gray
Nut Cover, Gray
Mylar, 3-112" X 100 Ft
#73 Shield Bead
Shrink Sleeving, 114"
Lockwasher
Potentiometer, Audio, 50K
Nut, Hex 318"
Washer, Lock, 318" Internal
Tooth
Switch, SPDT
Switch, DPDT Toggle
Nut
Dress Nut, Satin Finish
Washer, Teflon (for Volume
Cont)
PARTS LIST ABBREVIATIONS: CD, Ceramic Disk;
CF, Carbon Film; CM, Ceramic Monolithic; EL,
Electrolytic; MF, Metal Film; Rad, Radial Leads;
Tant, Tantalum.
Back Panel
Connector, 3-Pin Female,
Canon AXR 3-31
Connector, 3-Pin Male
Jack, Phone, 3-Cond, Double
Closed Circuit
Washer, :378 ID
Wires, Local Purchase
Screw, 4-40 X 318"
Nut, Hex, KEP 6-32
4.3 ELECTRICAL PARTS
Ref. No.
I
1
I C19
I
c20
C21
CC-33 CIRCUIT BOARD ASSEMBLY
Description
part
I
Capacitor, CM, 0.1 pF, 50V
Capacitor, CM, 0.033 pF, 50V
Capacitor, Tant, 10 pF, 6.3V,
20%
Capacitor, CM, 0.1 pF, 50V
Capacitor, EL, Rad, 33 pF, 16V
Capacitor, CM, 0.01 pF, 50V
Capacitor, CM, Rad, 100 pF,
50V
Capacitor, CM, 0.1 pF, 50V
Capacitor, EL, 10 pF, 16V
Capacitor, CM, 0.01 IF, 50V
Capacitor, CM, 0.1 pF, 50V
Capacitor, CD, 10 pF, 500V
Capacitor, EL, Rad, 47 pF, 16V
Capacitor, CM, 0.1 pF, 50V
Capacitor, Mylar, 0.001 pF,
1
1
I
I1
NO.
1511R10421
1511R33321
1515R1063B
1511R10421
1513R3364E
1511R10321
1514R1022L
I
1
I
I1
I Capacitor, EL, Rad, 4.7 pF, 16V 1 1513R4754E 1
1I
Capacitor, Tant, 1.0 pF, 35V,
20%
Capacitor, CM, 0.1 pF, 50V
1515R1053G
1511R10421
Ref. No.
C27
C28,C29
D1-D3
D4
D5,D6
D7
D8
D9-Dl1
Q1,Q2
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
Rll
R12
R13
R14,R15
R16
R17
R18,R19
R20
R22
R23
R26
R27
R28
R29
R30
R3 1
R32
R33
R34
R35,R36
S1
S2
U1
U2
U3
U4
CC-33 CIRCUIT BOARD ASSEMBLY
Description
Part No.
1514R10320
Capacitor, CM, Rad, 0.01 pF,
200v
1513R10641
Capacitor, EL, 10 pF, 50V
Diode, Signal 1N6263
1601626300
Diode, 1N5231B
160352310B
Diode, 1N4004, I A , 400V
1601400400
Diode, 1N5245B Zener, Voltage
1601524508
Reg l 5 V
1601536508
Diode, 1N5365B Zener, Voltage
Reg 36V
1601400400
Diode, 1N4004, lA, 400V
Transistor, Siliconix J305lE305
1602030500
Resistor, CF, 470 Ohm, 1/4W, 5% 140247005D
Resistor, CF, 820 Ohm, 1/4W, 5% 140282005D
Resistor, CF, 220 Ohm, 1/4W, 5% 1402220050
Resistor, CF, 68K, 1/4W, 5%
140268025D
Resistor, CF, 5.1M, 1/4W, 5%
140251045D
Resistor, CF, 330K, 1/4W, 5%
1402330350
Resistor, CF, 10K, 1/4W, 5%
1402100250
140222025D
Resistor, CF, 22K, 1/4W, 5%
Resistor, CF, IOOK, 1/4W, 5%
1402100350
Resistor, CF, 22 Ohm, 1/4W, 5%
140222R05D
Trim Pot, 100K
1409001100
Resistor, CF, 22K, 1/4W, 5%
140222025D
Resistor, CF, 200K, 1/4W, 5%
140220035D
Resistor, MF, 60.4K, 1/4W, 1%
140360422D
Trimpot, 10K
1409000300
Resistor, CF, 270K, 1/4W, 5%
1402270350
Resistor, MF, 20.OK, 1/4W, 1%
140320022D
Resistor, CF, loOK, 114W, s0/o
140210005D
Resistor, CF, 22K, 1/4W, 5%
140222025D
Resisbr, CF, 2.2K, 4/4W, 5%
44022P15D
Resistor, CF, 1.2K, 114W, 5%
140212015D
Resistor, CF, 4.7 Ohm, 1/4W, 5%
14024R705D
Resistor, CF, 22K, 1/4W, 5%
140222025D
Resistor, CF, 100 Ohm, 114W, 5% 140210005E
140236R05E
Resistor, CF, 36 Ohm, 1/4W, 5%
Resistor, CF, 1.3K, 1/4W, 5%
140213015D
Resistor, CF, 12K Ohm, sO/O,118W 140212025D
Resistor, CF, 1K, 1/4W, 5%
140210015D
Resistor, CF, 3.3 Ohm, 1/8W, 5%
14023R305B
Resistor, CF, 100K. 114W, 5%
140210035D
Switch, SPDT
1903000100
Switch, DPDT Toggle
1903000200
IC, Signetics NE5532N
160355320N
IC, CD4053BE
16034053BE
IC, Op Amp, National LM386N-1
1603038600
16030317MP
IC, Voltage Regulator, National
LM317MP
Insulator w/o Hole, Silicon
9130184000
IC Socket, 16-Pin
2001000300
IC Socket, 8-Pin
2001000100
PARTS LIST ABBREVIATIONS: CD, Ceramic Disk;
CF, Carbon Film; CM, Ceramic Monolithic; EL,
Electrolytic; MF, Metal Film; Rad, Radial Leads;
Tant, Tantalum.
Capacitor, CD., 2 2 pF, 50V
C20
C23
C25
C26
C27
C28
C29
C30
C3 1
C32
C42
CR2
CR3
CR4
CR5
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R14
R15
R16
R17
R18
R19
R20
R2 1
R22
R23
R24
R25
Capacitor, EL, Rad., 10 uF, 50V
Capacitor, EL, Rad., 100 uF, 10V
Capacitor, Mylar, Rad., .001 uF,
l00V
Capacitor, EL, Rad., 10 uF, 16V
Capacitor, CM Rad., 1 uF, 50V
Capacitor, EL, Rad., 100uF, 10V
Capacitor, EL, Axial, 2200 uF, 16V
Capacitor, EL, Axial, 2200 uF, 16V
Capacitor, EL, Rad., 100 uF, 16V
Capacitor, CM Rad., 1 uF, 50V
Capacitor, CD, 100 uF, 50V
Diode, 1N6263
Diode, 1N6263
Diode, 1N6263
Diode, 1N914B
Resistor, CF, 820 Ohm, 1/4W, 5%
Resistor, CF, 220 Ohm, 114W, 5%
Resistor, CF, 68K, 1/4W, 5%
Resistor, CF, 220K, 1/4W, 5%
Resistor, CF, 10M, 1/4W, 5%
Resistor, CF, 22K, 1/4W, 5%
Resistor, CF, 10K, ll4W. 5%
Potentiometer, Trimmer, 2.5 TO
1OK
Resistor, CF, loOK, 1/4W, 5%
Resistor, CF, 22 Ohm, 1/4W, 5%
Resistor, CF, 22K, 1/4W, 5%
Resistor, CF, 22K, 1/4W, 5%
Resistor, CF, 22 Ohm, 1/4W, 5%
Resistor, CF, 2.2K, 1/4W, 5%
Resistor, CF, 2.2K, 1/4W, 5%
Potentiometer, Trimmer, 2.5 TO
1OK
Resistor, MF, 60.4K, 1/4W, 1%
Resistor, MF, 60.4K, l/4W, 1%
Resistor, MF, 20K, 1/4W, 1%
Resistor, CF, 1K, 1/4W, 5%
Resistor, CF, 100 Ohm, 1/4W, 5%
Resistor, MF, 20K, 1/4W, 1%
51821 110
51821 529
1514R1022L
51821230
151 1R10421
51821529
1513A2284E
1513A2284E
51821524
151 1R10421
52157330
1601626300
1601626300
1601626300
160109140B
52154283
521 54297
521 54237
52154225
521 54 185
521 54249
521 54257
46643P1
521 54233
521 54321
52154249
52154249
521 54321
52154273
521 54273
46643P1
54045604
54045604
54045200
521 5428 1
521 54305
54045200
CC-40145 CIRCUIT BOARD ASSEMBLY
Part No.
Description
Resistor, CF, 100 Ohm, 1/2W, 5% 52154482
52154233
Resistor, CF, loOK, 114W, 5%
52154233
Resistor, CF, loOK, 114W, 5%
52154249
Resistor, CF, 22K, 114W, 5%
Resistor, CF, 150 Ohm, 114W, 5% 52154301
Resistor, CF, 2.7 Ohm, 1/4W, 5% 52154343
52154249
Resistor, CF, 22K, 114W, 5%
52154493
Resistor, CF, 36 Ohm, 1/2W, 5%
52154278
Resistor, CF, 1.3K, 114W, 5%
52154255
Resistor, CF, 12K, 114W, 5%
52154281
Resistor, CF, 1K, 114W, 5%
Resistor, CF, 3.3 Ohm, 1/8W, 5% 52154120
Resistor, CF, 470 Ohm, 1/4W, 5% 52154289
53293000
IC, NE5534N
160334580P
IC, MC3458P
160308200M
IC, SGS TBA-820-M
16030317MP
IC, LM317MP
16034053BE
IC, Analog Switch
86266008
Voltage Regulator, 5.1V, 5%,
1N5231B
160152450B
Voltage Regulator, 15V, 5%.
1N5245B
160153650B
Voltage Regulator, 36V, 5%
1N5365B
2001000100
IC Socket, 8 Pin
2001000100
IC Socket, 8 Pin
2001000100
IC Socket. 8 Pin
5304130 1
IC Socket, 16 Pin DIP
9130184000
Insulator wlo Hole, Silicone
51379024
ShrinkTubing, Clear, .25 Dia. X
I 1.0 Lg.
9030141800,B
Ref. No.
R26
R28
R29
R36
R38
R39
R40
R4 1
R42
R43
R44
R45
R49
U1
U2
U3
U4
U5
VR1
Ref. No.
[
CG18SL CIRCUIT BOARD ASSEMBLY
Description
part NO.
I
Capacitor, CD, 330 pF150V
Capacitor, 220 pF150V
Capacitor, Mylar, ,022 uF/ l00V
Capacitor, Cer, .0033 uF150V
Capacitor, Mylar, .047 uF/ 50V
Capacitor, CM, .1 uF150V
Capacitor, CD, 680 pFl5OV
Capacitor, Mylar, .O1 uFI50V
Capacitor, Tant, 1 uF, 35V
Diode, Signal, 1N914B
Transistor, MPSU45
Resistor, CF, 68K, 114 W, 5%
Resistor, CF, 470K, 114 W, 5%
Resistor, Variable Trim, 20K
Resistor, MF, 63.4K, 114 W, 1%
Resistor, CF, 22K, 114 W, 5%
Resistor, CF, 22M, 114 W, 5%
Resistor, CF, 2M, 114 W, 5%
Resistor, CF, 10M, 114 W, 5%
Resistor, CF, 22K, 114 W, 5%
Resistor, CF, 4.7K, 114 W, 5%
Resistor, Variable Trim, 5K
Resistor, CF, IOK, 114 W, 5%
Resistor, CF, 0 Ohm, 114 W, 5%
Resistor, MF, 12.7K, 1%
lC, CD4001AE
IC, NE567N
lC, LM78L05AC2W
Wire, 24 AWG, Blk, 3.0" LG.
Wire, 24 AWG, Blu, 3.0" LG.
Wire, 24 AWG, Red. 3.0" LG.
Wire, 24 AWG, Brn, 3.0" LG.
Pin, Cambion
IC Socket, 14-Pin DIP
IC Socket, 8-Pin DIP
O
G
I
\)
PARTS LIST ABBREVIATIONS: CD, Ceramic Disk;
CF, Carbon Film; CM, Ceramic Monolithic; EL,
Electrolytic; MF, Metal Film; Rad, Radial Leads;
Tant, Tantalum.
I
.
.
This page intentionally left blank.
Page 18
SECTION 5: DIAGRAMS 1 DRAWINGS
0
g$:
Title
Page
This drawing applies to BP300 Units with CC33 or CC40 cards. Units with CC45 cards are one inch longer.
----
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Cable Wiring Diagram, Two Channel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
----
Cable Wiring Diagram, Three Channel System
OD3415
Outline Drawing, BP300
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Application Znformation
'I'M11786
12-Volt Battery Operation / Teleproduction System Example / Multi-channel Operation /
Dry Line Operation (For extended distances) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Model BP300 User Stations with CC33 card (Standard units and unit3 with Call Light Opfion).
SD1464
Schematic Diagram, Series B Phase 3 User Station
AS 1821
Assembly Diagram, P.C.B., CC33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Model BP300 User Stations with CC40 card (Units with various options or combinations of options. Also applies to
standard units built between 1979 and 1981, approximately.)
F 7
. . . . . . . . . . . . . . . . . 26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
SD1427-01
(Simplified) Schematic Diagram, Phase I11 User Stations (CC40) sheet 1
AS 1409
Assembly Diagram, P.C.B. CC40145 Layout
CC40 card detaileddiagrams
SD1427-00
Schematic Diagram, Phase 3 User Stations, sheet 1 of 2 .
. . . . . . . . . . . . . . . . . . . . . . . . . . 28
SD1427~00
Schematic Diagram, Phase 3 User Stations, sheet 2 of 2 .
. . . . . . . . . . . . . . . . . . . . . . . . . . 29
Call Light Option used by both Model BP300 User Stations with CC33 card (Standard units and units with Call Light
Option).
SD1470
Servicing Diagram, Light Signaling Circuit, CC-18SL, Phase 3 Configuration .
. . . . . . . . . . . . . . 30
Exploded Views
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
AS 1786
Final Assembly, Model BP300
AS 1787
Front Panel Assembly, Model BP300
AS 1788
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Back Panel Assembly, BP I TWI UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Page 19
WEIGHT: 1 .OLBS (.45kg)
ALL DIMENSIONS: INCHES(mrn)
OD3415
Outline Drawing,
BP300
Page 20
Cable Wiring Diagram
Two Channel System
3
>
Channel 2
2"
Channel 1
Common
>
2
>
Common
I
>
>3
A
w
-
4
Drain Wires
w
To Station
To Supply
Page 21
- >
1
----c-
-
Cable Wiring Diagram
Three Channel System
3
Grn
>
Channel 3
Blk
N.C.
N.C.
N.C.
-
I
A
>3
4.1
Drain Wires
Common
---
Common .
To Supply
4
A
w
A
w
To Station
Page 22
-c-
12V Battery Operation
7
8
P.C.B.
4
5
6
3
2
1
CC - 4 0
REVISIONS
ZMlE
REV.
D
DESCRlPMlN
DATE
AEDRAWN
APPROVED
12-9-65
E REVISED PER ECO" 2523
F CHbD NOTE5 PER ELO" 31%
erL
6.ZB.59
4 . 14,40
h
D
DYNAMIC MIC
CONNECTOR
X L R - 4 STANDARD
C
MOMENTARY
IO. THIS DRAWING DOES NOT SHOW OPT/ONAL PARTS. FOR OPTION
/NFORMAT/OAI, REFER T O SD / 4 2 7 - 0 0 .
9 FOR SPEAKER STATIOAIS) CHANGE U 4 T O A N L M 3 1 7 K TTNE
0LM317T
A T z A C I F O TO
HEATSlNK>JUCI AS
A H A M rt31o2.
8. SEE 5 0 3 3 6 2 FOR ALTERNATE HEADPHONE/
SPEAKER AMP TBA 8 2 0 M AL7: PINOUT N O J F U .
#z
t
SCHOTTKY DIODE, VF
AIOMIAIAL
VALUE H A Y
-.-
4-
0.1 J O 0 . 3 V .
VARY.
6
5. TEST JIG AND 5 E T UP FOR CALIBRATION
VOLTAGE READINGJ,
SET CHAIVAIEL JELECT FOR CH.2. DISCONNECT SPEAKER.
SD1427-01
(Simplified) Schematic Diagram,
Phase 111User Stations (CC-40)
T E S T SWIT%H
,
GENERATOR
4. ALL TEST VOLTAGCS A N D CURRENTS: L I O %
3. OPTIONS A N D M N E M O N I C S ARE E A P L A / N E D OAl T H E
OPTION LIST, A N D O N THE OPTIOAI DETAIL SHEET:
I
2. CAP. VALUES ARE J H O W N : MICROFARADS/UOLTS.
DYNAMIC
HP Lo
MIC
JI
CONNECTOR Hp
I
I
A
I
I
I. ALL RESISTORS ARE CARBON NLM,1/4 W A T T , + S % .
I
HPHI
LAST USED'
C43,CR8,J4,83,R44,55,
U t
xxxz
R2,R13,R27, R30-R35,
YATEIlAL
R37, R47) R 4 8
*
OTHERWISE SPECIFIED)
c m c l mr
WLEM O ~ W l S W
EE C I F I W
OlYllMOHS I R E *1INCHES
TWIINCEIAIE
FAAD E ~ U B MLES
U5,V R 3
NOT USED: CI,C18,CZI,C22)C33-C41,CRI,Q2,
NOTES: (UNLESS
-APPROVALS
A
DATE
DRAW
NElLSOm
12-9-85
SCHEMATIC DIAGAAM, PHASE Z Z
USER 5T.4 T / O M
(CC -40)
CHECKED
FlMSH
DO NOT SCALE DRAWlNO
L
4
SCALE
SHEET
Assembly Diagram,
P.C.B. CC40/45 Layout
E OPTION
CC-45 ONLY
-RHC
(*M)
OPTION
CC-45
MS6 O P T I O N (FOR
V
I
J4
XLR-5-32
CONNECTION
(*B)
OPTION
P4
A5F
ONLY
J1)
i
i
i
1
SD1427-00
Schematic Diagram,
Pl~ase3 User Stations,
Sheet 2 of 2
Page 29
REVlSlONS
#W
>
_
BLUE 9"
RIV.
A
DCIOlWmOU
REV/JED PER ECO /266
I@P 3 1
DETAIL A
2 REQD
DETAIL B
SEE DETAIL B
2. ITEM 17fI8 ARE TW/STED W I E S .
I. FOR PART NUMBERS oL O€SCR/P7'ION
S E l SEPARATE PARTS L/S T
PC 9 0 2 0 - /787-OCd
'
OAn
7.5084
A??noWO
MISTED PAlR
MISTED PAlR
GRN 9'
MISTED PAlR
(PIN 2)
I
sd
(PIN 1)
fit
(PIN 3)
DETAIL A
I
I
SEE DETAIL A
SEE DETAIL B
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