SENTRY
TECHNICAL MANUAL
TECHNICAL MANUAL
EDITION 1.6
CONTENTS
Manual Introduction
System Introduction
System Components
System Operation
Vandal Resistant Panel layout and sizes
Installation
Block Diagrams
Cable Size tables
Testing the installation
Telephone Connections Compatibility Chart
Accessories Connection Guide
Standard wiring diagram
Isolated system wiring diagram
800 Series door panel wiring diagram
Video system wiring diagram
Apartment station system wiring diagram
Art136 amplifier wiring diagram
Trouble Shooting Guide
PAGE 1 of 29
SENTRY TECHNICAL MANUAL
PAGE
2
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2 – 12
13
14
15
16
17
18
19
20
21
22
23
24 – 25
26
27
28 - 29
VER1.6
MANUAL INTRODUCTION
The information is this manual is intended as an installation and commissioning guide for
the Sentry system. This manual should be read carefully before the installation
commences. Any damage caused to the equipment due to faulty installations where the
information in this manual has not been followed is not the responsibility of Videx Security
Ltd.
VIDEX run free training courses for engineers who have not installed the sentry system
before. Technical help is also available on 0191 224 3174 during office hours or via e-mail
tech@videx-security.com.
SYSTEM INTRODUCTION
The Sentry system is primarily a single entrance audio or audio/video system which is
capable of being expanded to multiple entrances with additional equipment. The system
has no limit on the number of apartments for which it can control although we suggest
using this system on small to medium sized installation of no more than 20 apartments.
The system benefits from advanced features such as full privacy of speech, fully privacy of
lock release, adjustable calling time, speech time and door open time and the facilities for
both push to exit button and tradesman button. There are many optional extras available
for the system including full line card isolation, door monitoring and access control (coded,
proximity, Bio). A range of options are also available for the apartments including a range
of telephones with varying facilities, videophones, extension sounders and strobes.
SYSTEM COMPONENTS
A standard audio system will comprise of a door panel, control cabinet and audio
telephones. A standard video system will comprise of a door panel, control cabinet, video
splitters and videophones. The individual parts are described below.
DOOR PANELS
Door panels from the 800 Series (Using the 837 amplifier), 4000 Series (Using the 4837 or
4832 amplifier) and vandal resistant (Using the 437 or 537 amplifier) range can be used on
the Sentry system.
Art.437 or 537 Amplifier + Connector PCB
Connection
Function
1
Receive speech from apartment
2
Transmit speech to apartment
3
Switched +12Vdc input
4
0V (Ground)
CB
1
2
…
10
PAGE 2 of 29
Button common connection
Push button 1 output
Push button 2 output
Push button 10 output
Art.837 Amplifier connections
Connection
Function
2
Transmit speech to apartment
~
13Vac input for name plate lights
3
Switched +12Vdc input
1
Receive speech from apartment
4
0V (Ground)
~
0V input for name plate lights
X
Not Used
P2
Push button 2 output
P1
Push button 1 output
C
Button common connection
SENTRY TECHNICAL MANUAL
VER1.6
Art.4837 Amplifier connection
Connection
Function
C
Buttons common connection
C1
Calltone out (Not used on Sentry)
P1
Push button 1 output
P2
Push button 2 output
S1
Common relay (Not used on Sentry)
S
Normally Open Relay (Not used)
RL
0V relay trigger (Not used on Sentry)
0V Ground
1
Receive speech from apartment
+
Switched +12Vdc input
2
Transmit speech to apartment
P3
Push button 3 output
P4
Push button 4 output
Art.4832 Amplifier connection
Connection
Function
I
Camera power input (14-20Vdc)
F1
Camera 0V
M/V2
Video Screen or Video sync+
V/V1
Video centre core or Video syncC
Buttons common connection
C1
Calltone out (Not used on Sentry)
P1
Push button 1 output
S1
Common relay (Not used on Sentry
S
Normally Open Relay (Not used)
RL
0V relay trigger (Not used on Sentry)
0V Ground
1
Receive speech from apartment
+
Switched +12Vdc input
2
Transmit speech to apartment
P3
Push button 3 output
ART.136 AMPLIFIER (Software version 136-12 or later)
680R
Connection
1
2
+ (3)
- (4)
5
T
PTE
C
NC
NO
D+
DBSY
SL
F1
Function
Receive speech from apartment
Transmit speech to apartment
+12Vdc input (Amplifier connection 3 on the Sentry PCB)
0V (Ground) (Amplifier connection 4 on the Sentry PCB)
Link to terminal – when used on Sentry system
Electronic call tone output to common side of call buttons (NOT USED ON SENTRY SYSTEM)
Link to terminal 5 when used on Sentry system
push to exit button to trigger door release relay (NOT USED ON SENTRY SYSTEM)
Common connection of dry contact relay (NOT USED ON SENTRY SYSTEM)
Normally closed connection of dry contact relay (NOT USED ON SENTRY SYSTEM)
Normally open connection of dry contact relay (NOT USED ON SENTRY SYSTEM)
External link to door open (+12V side) LED.
External link to door open (0V side) LED.
Busy signal (NOT USED ON SENTRY SYSTEM)
Switched 0V output to switch on video PSU. (NOT USED ON SENTRY SYSTEM)
Switched 0V output to switch on camera. (NOT USED ON SENTRY SYSTEM)
ON
Dip-switches and
jumper setting
1 2 3 4
on Art.136
amplifier
When using the Art.136
amplifier with the Sentry
system, all dip-switches
must be off
H
L
Position H
High volume reassurance tones
Position L
Low Volume reassurance tones
No Jumper
No reassurance tones
This jumper will not adjust the reassurance tone on
the Sentry system
IMPORTANT NOTE (Art.136 Amplifier only): A 680R resistor needs to be fitted across terminals 1 & 3 of the
amplifier and a wire link across terminals 5 & - of the amplifier.
Speech volume adjustments are carried out at the door panel using a small trimmer driver.
Adjustment for
speech volume level
at the door station
Adjustment for
speech volume at the
apartment
Please see block diagram on page 16 for cable requirements
PAGE 3 of 29
SENTRY TECHNICAL MANUAL
VER1.6
CONTROL CABINET
The control cabinet consists of three primary components plus optional extra components
such as line card isolation, door monitoring etc. The three primary components are the
Sentry control PCB, power supply unit and time clock.
CONNECTIONS
SENTRY PCB
1
CON
CN1
Terminal
+12
GND
NO
CO
NC
CB
4
3
1
2
Function
12Vdc Input power
0V (Ground)
Normally open relay
Common relay
Normally closed relay
Call button common
0V to amplifier
Switched +12 to amp
Transmit speech to amp
Receive speech from amp
CN2
ENG-LO
ENG-LA
FIREMAN
SWITCH
TRADE
BUTTON
TIME
CLOCK
Engaged signal
Busy lamp connection
Fireman switch input
Triggers relay for set time
Trade button input
+12
7
4
2
1
5
+12V out to telephones
0V to telephones
Call tone output
Transmit speech to phone
Receive speech from phone
Lock release trigger
CN3
CN1
2
CN2
3
1
Call tone line protection fuse
2
Call in progress LED
3
JP3 Timer jumpers for call time,
speech time and relay time
315mA
CN3
Time clock input
The Sentry PCB includes three jumpers to select calling time, speech time and door open
time:CALL TONE LENGTH
SPEAK TIME
LOCK OPEN TIME
JP3
L1
L2
L3
LINK FITTED
15 Seconds (3 rings)
30 Seconds
5 Seconds
LINK REMOVED
25 Seconds (6 Rings)
90 Seconds
10 Seconds
POWER SUPPLY
A control cabinet for an audio system will contain a 13.8Vdc PSU with battery back up
facility. The standard power supply is rated at 1 Amp. (Care should be taken to calculate
the current consumption of the lock release as it may be necessary to upgrade this power
supply to either a 2 Amp or even a 3 Amp). Video control cabinets will have an additional
PSU rated at 20Vdc 1 Amp surge or 800mA continuous. This additional power supply is
described below and is used to power the videophones and the camera.
PAGE 4 of 29
SENTRY TECHNICAL MANUAL
VER1.6
Art. 893N
20Vdc 800mA continuous 1A surge PSU. This power supply only
has an output when either a 0V is applied to –C or when a voltage
is applied to +C. At all other times the + output is switched off.
Connection
230V~ 0
+
-C
+C
D+
Function
Mains voltage input
Switched 20Vdc output (Triggered by –C or +C)
0V
0V trigger input (From 4V to 0V)
+ volts trigger input (From 8V up to 30V)
+20Vdc output via diode
Art.701
BST/GMT digital time clock. This time clock operates from a 12Vac
or dc power supply. The output is a dry contact relay. When used
with the Sentry control system the relay is used to short the time
clock inputs on the sentry PCB which will in turn enable the trade
button input to accept a short from a trade button. This will then
energise the lock relay on the Sentry PCB.
Connection
Function
+
12Vac or dc voltage input
0V
TR
Not used with Sentry system
C
Common connection on relay
NO
Normally open connection on relay
NC
Normally closed connection on relay
For more information see time clock instruction sheet
OPTIONAL ISOLATION PCB
1
2
3
3
5
1
2
3
4
5
5
5
5
An isolation card will prevent a fault in a single
apartment affecting the rest of the system. The
isolation card has four channels (One card required
for every four apartments) and can be mounted in
the main control cabinet or in riser boxes.
Operation:
The isolation card will trigger an output when it
receives a positive voltage on either A, B, C or D.
4
4
4
4
The output will stay triggered as long as the SW+
Power and phone commons from Sentry terminal has 12 volts present. Once the 12V is
PCB
removed from the SW+ terminal the output will
switch back into isolated mode. The inputs A-D are
Select lines from call buttons
from the call buttons at the door panel and the SW+
Call tone & +12V to phones fuse
is switched by the Sentry PCB (Terminal 3 of the
amp). Four LED’s on the PCB indicate when an
Phone connections to apartment
output is live.
Output live LED
PAGE 5 of 29
SENTRY TECHNICAL MANUAL
VER1.6
INTERCOM 3 PCB
3
1
2
1
CN1 Connections in from Sentry PCB
2
CN2 Connections out to apartment station
3
Volume adjust
The intercom 3 apartment station
interface PCB is required whenever
the 500, 500M or 500ST apartment
station are used. This PCB converts
the duplex speech into simplex
speech and controls the switching of
the apartment station
CON
Terminal
Function
CN1
+12V
Gnd
3
4
2
1
5
+12Vdc In
Ground
Switched 12Vdc
Calltone
Receive Speech
Transmit Speech
Lock Trigger
CN2
1
6
2
3
5
+12V
Lock button
Talk button
Switched 12Vdc
Speaker
Ground
+12Vdc Out
NOTE
In the event of the speech needing to be adjusted to eliminate feedback or to increase the
speech volume to an acceptable level the following two options are available :Option 1. The speech can be adjusted at the door panel amplifier by adjusting the two
volume controls (One for transmitting to the apartment and one for receiving from the
apartment).
Option 2. There is also a volume POT [VR1] on the intercom 3 PCB. This will adjust both
directions of speech at the same time and is only intended for situations when the volume
cannot be adjusted sufficiently at the door panel. (Note: This will also adjust the call tone
volume both at the door and at the apartment station).
PAGE 6 of 29
SENTRY TECHNICAL MANUAL
VER1.6
AUDIO TELEPHONES
Art.3121
The Art.3121 includes a three position call tone volume control, lock
release push button and spare dry contact push to make button for
other services.
CONNECTIONS:1
2
T
P
C
8
9
Function
Transmit speech to the door panel
Receive speech from the door panel
Call tone in from Sentry PCB
Switch 0V lock trigger command
0V
Select line (Switches on telephone)
Dry contact switch
Art.3123
The Art.3123 includes a three position call tone volume control, lock
release push button and spare dry contact push to make button for
other services. Additionally it includes a slide mute switch with LED to
turn the phone off when the tenant does not want to be disturbed.
CONNECTIONS:1
2
T
P
C
8
9
Function
Transmit speech to the door panel
Receive speech from the door panel
Call tone in from Sentry PCB
Switch 0V lock trigger command
Not Used
Select line (Switches on telephone)
Dry contact switch
SWITCH PCB
+/~
PAGE 7 of 29
0V
+12V for mute LED
SENTRY TECHNICAL MANUAL
VER1.6
Art.3125
The Art.3125 includes a three position call tone volume control and
large lock release push button. Additionally it includes a push on push
off mute switch with status LED and a door open LED.
CONNECTIONS:1
2
T
P
C
D
+12
Function
Transmit speech to the door panel
Receive speech from the door panel
Call tone in from Sentry PCB
Switch 0V lock trigger command
0V
Select line (Switches on telephone)
Switched +12 in for door open LED
+12V for mute circuit
Art.3126
The Art.3126 includes a three position call tone volume control and
large lock release push button. Additionally it includes a push on push
off timed mute switch with status LED and a door open LED.
CONNECTIONS:1
2
T
P
C
D
+12
Function
Transmit speech to the door panel
Receive speech from the door panel
Call tone in from Sentry PCB
Switch 0V lock trigger command
0V
Select line (Switches on telephone)
Switched +12 in for door open LED
+12V for mute circuit
JUMPER SETTINGS:FIVE SETTINGS ARE AVAILABLE FOR THE PRIVACY TIME
Jumper in position A
15 Minutes
Jumper in position B
30 Minutes
Jumper in position C
2 Hours
Jumper in position D
4 Hours
Jumper in position E
8 Hours
SET THE PRIVACY LED TO FLASH OR ON CONSTANT
Jumper in position FL
Flash the privacy LED
Jumper in position FX
LED on constant
PAGE 8 of 29
SENTRY TECHNICAL MANUAL
VER1.6
VIDEOPHONES
901D
The Art.901D (901D/C for colour) includes a lock release
push button and a dry contact push to make spare push
button for other services.
CONNECTIONS:1
2
T
P
C
V
M
M
+12
+20
Function
Transmit speech to the door panel
Receive speech from the door panel
Call tone in from Sentry PCB
Switch 0V lock trigger command
0V
Select line (Switches on telephone)
Centre core of coax
Screen of coax
0V
+12V out to power video splitter Art.894
Switched +20V in to power videophone
Art.3313
The Art.3313 (3413 for colour) includes a lock release push button and two dry contact push
to make spare push buttons for other services. An Art.3980 back plate is required with this
videophone.
CONNECTIONS:1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PAGE 9 of 29
Function
+12V out to power video splitter
Not used
Spare button
+20V power input
Door release command
Transmit speech to door panel
Receive speech from door panel
0V (Ground)
Not used
Local call tone input
Coax centre core or non-coax syncCoax Screen or non-coax Sync+
Switched +12 for door open LED
Select input to switch on videophone
Call tone input from Sentry PCB
Common of spare buttons
Spare button
+12V to power videophone privacy
SENTRY TECHNICAL MANUAL
VER1.6
DIP SWITCH SETTINGS
8 Way dip switch (Switches 1 – 5)
Mute Duration time
Time
1
2
15 Minutes
ON
OFF
30 Minutes
OFF
ON
2 Hours
OFF
OFF
4 Hours
OFF
OFF
8 Hours
OFF
OFF
3
OFF
OFF
ON
OFF
OFF
4
OFF
OFF
OFF
ON
OFF
5
OFF
OFF
OFF
OFF
ON
8 Way dip switch (Switch 6)
Mute LED
Switch
6
Fixed
OFF
Flashing
ON
8 Way dip switch (Switches 7 & 8)
°° Button Operation
Switch
7
8
Camera recall
ON
OFF
Dry contact
OFF
ON
4 Way Dip Switch (Switches 1 & 2)
S Button Operation
Switch
1
2
Camera recall
ON
OFF
Dry contact
OFF
ON
4 Way Dip Switch (Switches 3 & 4)
VIDEO MODE
Switch
3
4
Coax
ON
ON
Non-Coax
OFF
OFF
3 Way Dip Switch
VIDEO MODE continued
Switch
Coax
Non-Coax
1
OFF
ON
2
OFF
ON
3
OFF
ON
APARTMENT STATIONS
500
The model 500 apartment station includes a push to talk button, door release button and
slide mute switch. The Intercom 3 PCB must be used when using this apartment station.
Connections:
Function
4
Select line from call button
2
Switched +12V to activate
6
Talk Button
1
Lock release button
3
Audio
5
Ground
PAGE 10 of 29
SENTRY TECHNICAL MANUAL
VER1.6
500M
The model 500M apartment station includes a push to talk button, door release button and
push mute switch with LED and door open LED. The Intercom 3 PCB must be used when
using this apartment station.
Connections:
Function
4
Select line from call button
2
Switched +12V to activate
6
Talk Button
1
Lock release button
3
Audio
5
Ground
+
12Vdc to power mute circuit
D
Switch 0V to trigger door open LED
PRIVACY LED FIXED OR FLASHING
FIXED
SW4
FLASHING
SW4
500ST
The model 500ST apartment station includes a push to talk button, door release button
and timed push mute switch with LED and a door open LED. The Intercom 3 PCB must be
used when using this apartment station.
Connections:
Function
4
Select line from call button
2
Switched +12V to activate
6
Talk Button
1
Lock release button
3
Audio
5
Ground
+
12Vdc to power mute circuit
D
Switch 0V to trigger door open LED
PRIVACY LED FIXED OR FLASHING
FIXED
SW4
PRIVACY TIMES
TIME
15 MIN
SETTING
PAGE 11 of 29
FLASHING
SW4
2 HOUR 4 HOUR 8 HOUR
SENTRY TECHNICAL MANUAL
VER1.6
ACCESSORIES
Art. 512A
Extension sounder for an apartment. This sounder can be wall
mounted and will ring whenever the telephone it is connected to
rings.
Connections
4
Call tone input
0V (Ground)
ES/1
Timed strobe unit for the hard of hearing or noisy environments.
The strobe will flash when a call is received and will continue
flashing for an adjustable time period or until the reset button is
pressed.
Connections
POWER
I/P
+O/P
GND
RESET
NC
CO
NO
PAGE 12 of 29
12V AC or DC input
+ trigger
12Vdc output
Ground
Switched negative reset
Normally closed relay connection
Common relay connection
Normally open relay connection
SENTRY TECHNICAL MANUAL
VER1.6
SYSTEM OPERATION
CALL: A call will be activated by a visitor pressing the desired flat number on the door
panel. A timed call tone will be heard at the occupants telephone (This will last for the time
set via jumper L1 or until the call is answered). A reassurance call tone will also be heard
at the door panel to indicate the system has been activated. If the occupant does not
answer the telephone, the call will clear down. If the occupant does answer the telephone,
the call tone will stop as soon as the handset is lifted. A two way conversation will then
take place (This will time out after the preset time set via jumper L2). If the occupant does
not want to let the caller into the building, the handset would be placed back on its cradle
and the call will clear down. If the occupier does want to let the caller into the building, the
lock button would be pressed and the door would open for the preset time. The lock button
will not work at any other time (A call must be placed to the handset and handset must be
answered before the lock button will work). Please note: This system has full privacy of
speech which means the speech lines will appear dead until a call is placed to that
apartment
TRADE: The trade button only works when the time clock is active (A short across the
time clock terminals on the Sentry PCB). At this time when the trade button is pressed the
door will open for the preset time (Set via jumper L3).
FIREMAN SWITCH/EXIT BUTTON: The fireman switch will work at all times. When this is
activated the door will open for the preset time (Set via jumper L3).
BUSY LIGHT: A busy light would be used when more than one sentry PCB is being used
to control multiple door systems. The busy light will illuminate when a call is activated at
any door panel. (To use several sentry PCB's together, simply connect the phone
commons from the PCB's together and also connect the engaged lines ENG-LO together).
PAGE 13 of 29
SENTRY TECHNICAL MANUAL
VER1.6
VANDAL RESISTANT PANEL LAYOUT AND SIZES
Standard audio panels
1 BUTTON = C
2 BUTTON = B, D (Note: Also available in 125mm 220mm panel style)
3 BUTTON = A, C, E
4 BUTTON = B, D, G, I
5 BUTTON = A, C, E, G, I
6 BUTTON = A, C, E, F, H, J
7 BUTTON = A, B, C, D, E, G, I
8 BUTTON = A, B, C, D, E, G, H, I
9 BUTTON = A, B, C, D, E, F, G, I, J
10 BUTTON = A, B, C, D, E, F, G, H, I, J
11 BUTTON = A, C, E, F, H, J, K, M, O, Q, S
12 BUTTON = A, C, E, F, H, J, K, M, O, P, R, T
13 BUTTON = A, C, E, F, H, J, K, M, O, P, Q, S, T
14 BUTTON = A, C, E, F, H, J, K, M, O, P, Q, R, S, T
15 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O
16 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, R
17 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, Q, S
18 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, R, T
19 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, S, T
20 BUTTON = A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
Other standard panel sizes:1 – 10 button with video [180mm (W) x 256mm (H) x 50mm (D)]
11 – 20 button + video [200mm (W) x 350mm (H) x 50mm (D)]
1 – 10 button + proximity [180mm (W) x 256mm (H) x 50mm (D)]
11 – 20 button + proximity [200mm (W) x 350mm (H) x 50mm (D)]
1 – 10 button + codelock [180mm (W) x 256mm (H) x 50mm (D)]
11 – 20 button + codelock [200mm (W) x 420mm (H) x 50mm (D)]
1 – 10 button + video & proximity [200mm (W) x 350mm (H) x 50mm (D)]
1 – 10 button + video & codelock [200mm (W) x 420mm (H) x 50mm (D)]
PAGE 14 of 29
SENTRY TECHNICAL MANUAL
VER1.6
INSTALLATION
The wiring diagrams towards the back of this manual should be followed carefully. Heavy
duty conductors on wiring diagrams are shown heavily outlined, These wires should be
doubled up.
-
Check that all components are free from damage before installing (Do not proceed with
installation in the event of damage).
-
Keep all packaging away from children.
-
Do not obstruct the ventilation openings or slots on any of the devices.
-
All connections to mains voltages must be made to the current national standards (IEE
Wiring regulations)
-
Install an appropriate fused spur or isolation switch to isolate the mains.
-
Isolate the mains before carrying out any maintenance work on the system.
-
All intercom and access control cables must be routed separately from the mains.
Lock release protection : A diode must be fitted across the terminals on the lock release
to suppress back EMF voltages. The diagram below shows the polarity of the diode when
fitted to the release.
- +
-
DIODE
1N4002
+
12V DC
LOCK RELEASE
Cable size and type : When running cables for any intercom system, these cables must
be installed separately from the mains cables. All multi pair cables should be to CW1308
specification. (0.5mm twisted pair telephone cable). Max resistance = 10 Ohm.
Lock release wires should be doubled up. Max resistance = 3 Ohm
The cables sizes above can be used for distances up to 100m. On distances above 100m
the cable sizes should be increased to keep the overall resistance of the cable below the
RESISTANCES indicated above.
PAGE 15 of 29
SENTRY TECHNICAL MANUAL
VER1.6
AUDIO SYSTEM BLOCK DIAGRAM
Note: Additional cores will be required for auxiliary devices such as push to exit buttons,
fireman switches, proximity access control etc.
VIDEO SYSTEM BLOCK DIAGRAM
Note: Additional cores may be required for auxiliary items such as push to exit buttons,
fireman switch proximity access control etc..
The block diagram above shows all videophones coming back to one point with all the
video distributors at that point. It is also possible to spread the video distributors around
the building (Please see wiring diagrams for more information).
PAGE 16 of 29
SENTRY TECHNICAL MANUAL
VER1.6
Connections from the door panel to the control cabinet.
(NOTE: Additional connections may be needed for fireman switches keypads, proximity etc)
Connections
Amp 1
Amp 2
Amp 3
Amp 4
CB
Selects 1-n
Trade
Trade
Lock
Lock
V*
M*
I (+20)*
F1 (Vid 0V)*
SB (+12V)*
50m
0.25mm²
0.25mm²
0.25mm²
0.25mm²
0.25mm²
0.25mm²
0.25mm²
0.25mm²
0.5mm²
0.5mm²
100m
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.75mm²
0.75mm²
200m
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
1.5mm²
1.5mm²
300m
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
2.0mm²
2.0mm²
400m
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
2.5mm²
2.5mm²
Standard quality
Medium quality
Good quality
Good quality
High quality
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
0.35mm²
0.35mm²
0.25mm²
0.5mm²
0.5mm²
0.35mm²
1.0mm²
0.75mm²
0.5mm²
1.5mm²
1.0mm²
0.75mm²
2.0mm²
1.5mm²
1.0mm²
* These lines are only required on video systems.
V is the centre core of the coax and M is the screen.
For best performance, keep the distance between the door panel and the control cabinet to a minimum.
Connections from the control cabinet to the apartment.
Connections
50m
100m
200m
300m
1
2
4(T)
5(P)
6(C)
D*
+12*
V(11)**
M(12)**
+20**
Vid Gnd**
+12OUT**
T(16)**
1T(17)**
2T(18)**
400m
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.5mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
0.75mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
1.0mm²
Standard quality
Medium quality
Good quality
Good quality
High quality
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
75Ω Coax cable
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.35mm²
0.5mm²
0.5mm²
0.5mm²
0.35mm²
0.35mm²
0.35mm²
1.0mm²
1.0mm²
N/A
0.5mm²
0.5mm²
0.5mm²
1.5mm²
1.5mm²
N/A
0.75mm²
0.75mm²
0.75mm²
2.0mm²
2.0mm²
N/A
1.0mm²
1.0mm²
1.0mm²
* Only required on phones with privacy and/or door monitoring.
** Only required on videophones
V is the centre core of the coax and M is the screen.
PAGE 17 of 29
SENTRY TECHNICAL MANUAL
VER1.6
Safety Note : The earth wire from the cabinet lid should be connected to the cabinet base
and then to the earth connection in the building. This should be checked for continuity.
An earth connection should also be fitted to the door panel stainless steel facia using one
of the studs provided.
TESTING THE INSTALLATION
-
Check all the connections have been made correctly and then power up the system.
-
Call all the apartments in turn. Check for call tone to the apartment, speech in both
directions and lock release.
-
If the volume of speech needs to be adjusted, this can be done by adjusting the presets
on the rear of the amplifier at the door panel as shown on page 3.
-
If the call tone volume needs adjusting this can be done at each handset (Three
position slid switch on the telephone).
-
Check the fireman switch (If fitted).
-
Set the time clock on/off times (Use the instruction supplied with the time clock). Check
the trade button only works when the time clock is on.
PAGE 18 of 29
SENTRY TECHNICAL MANUAL
VER1.6
TELEPHONE CONNECTIONS COMPATIBILITY CHART
AUDIO TELEPHONES
MODEL
Transmit
Speech
Receive
Speech
Call
Tone
Lock
Release
Ground
Trigger
+12V
Door
Monitor
1
1
1
1
1
1
1
1
1
1
1
1
1A
2
2
2
2
2
2
2
2
2
2
2
2
2A
T
T
T
T
T
T
T
T
4H or 4L
4H or 4L
4H or 4L
T
T/4
P
P
P
P
P
P
P
P
5
5
5
P
NO/P
7
7M
7M
GND
C
C
C
C
C
C
C
C
6
6
6
C
C/6
N/A
+
+12
+12
N/A
+
+12
+12
N/A
N/A
+
+
+12
N/A
N/A
D
D
N/A
N/A
D
D
N/A
N/A
N/A
D
N/A
3121
3123
3125
3126
924S
924MSL
940MS2L
940ST
524S
524MS
524MSL
526ST
500MM
VIDEOPHONES
MODEL
TX
SPEECH
RX
SPEECH
CALL
TONE
LOCK
RELEASE
AUDIO
GND
Trig
VIDEO
GND
+ IN
VIDEO
901D
3313
1
6
2
7
T
15
P
5
8
C
14
M
8
+20
4
VID
SIG
+12
IN
+12
Out
Door
Mon.
V&M N/A +12 N/A
11&12 18
1
13
APARTMENT STATIONS
MODEL
SELECT
SWITCHED
12V
TALK
BUTTON
LOCK
BUTTON
AUDIO
GND
+12V
SUPPLY
DOOR
MONITOR
4
4
4
2
2
2
6
6
6
1
1
1
3
3
3
5
5
5
N/A
+
+
N/A
D
D
500
500M
500ST
PAGE 19 of 29
SENTRY TECHNICAL MANUAL
VER1.6
ACCESSORIES CONNECTION GUIDE
PAGE 20 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows a single entrance vandal resistant door panel connected to multiple
apartments. The lock release shown is fail safe and a break glass is connected in line.
We recommend bringing all telephones back to one point (i.e. control cabinet) on this type
of installation.
PAGE 21 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows a single entrance vandal resistant door panel connected to multiple
apartments with full isolation to prevent a single apartment compromising the whole
system.
The lock release shown is fail secure. The SP35 door monitoring PCB is also shown along
with a set of normally closed door contacts. This will be used to activate the door open
LED on the telephone handsets.
The isolation cards each support four apartments. All the isolation cards can be mounted
together in one location or separately on each landing.
PAGE 22 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows a single entrance 800 series modular door panel connected to
multiple apartments.
PAGE 23 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows a single entrance video system with vandal resistant door panel
connected to multiple apartments.
`
COAX
Coax
V – Video signal
M - Screen
PAGE 24 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
COAX
COAX
PAGE 25 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows a single entrance apartment station system.
PAGE 26 of 29
SENTRY TECHNICAL MANUAL
VER1.6
WIRING DIAGRAM
This diagram shows the ART.136 amplifier used in the door panel. (Remember to fit the
680R resistor across terminals 1&3 of the Sentry PCB
PAGE 27 of 29
SENTRY TECHNICAL MANUAL
VER1.6
TROUBLE SHOOTING
When trouble shooting a large system, it will be easier to break the system down to a
manageable size. The simplest way to do this is to remove all but one handset. Doing this,
you can confirm the door panel and control cabinet are free from faults. Once this has
been confirmed you can reconnect the handsets in small sets (Floor by floor), testing after
each set to see if the fault has re-appeared.
SYMPTOM
No speech from door panel
TEST
No speech from handset
Check terminal 1 on the amplifier for continuity back
to the sentry PCB
Check terminal 1 on the handset for continuity back
to the sentry PCB
During a call but before lifting the handset, check the
voltage to the telephone on terminal 1 is 12Vdc.
Trace this voltage from amplifier terminal 1 to the
telephone.
Check the voltage drops to approx. 4Vdc during a
call after the handset is lifted. (If not try another
telephone)
If all else fails try another amplifier at the door station
Handset beeps only once when called
Check the voltage across 3&4 on the door panel
amplifier. During a call this should be 12Vdc
(Supplied from the Sentry PCB)
Handset only rings for 1 second
Check terminal 1 going to the handset for continutity
back to terminal 1 on the door station via the Sentry
PCB.
Check terminal 2 on the amplifier for continuity back
to the sentry PCB
Check terminal 2 on the handset for continuity back
to the sentry PCB
During a call but before lifting the handset, check the
voltage to the telephone on terminal 2 is 12Vdc.
Trace this voltage from amplifier terminal 2 to the
telephone.
Check the voltage drops to approx. 1Vdc during a
call after the handset is lifted. (If not try another
telephone)
If all else fails try another amplifier at the door station
Phone does not stop ring when handset is Check terminal 2 on handset for continuity back to
the Sentry PCB.
lifted.
Lock will not operate from telephone
Check terminal P on the telephone for continuity
back to the Sentry PCB.
Check the voltage on terminal 5 of the handset. 5Vdc
in standby dropping to 0V when the release button is
pressed during a call.
Lock operates as soon as the handset is Check for shorts across terminal 5 of the telephones
and other cables.
lifted.
Check terminal 5 voltage. Should be 5Vdc when the
button is not being pressed (5V is generated by the
Sentry PCB).
PAGE 28 of 29
SENTRY TECHNICAL MANUAL
VER1.6
Nothing happens when any call button is Check power to the Sentry PCB.
pressed
Check the CB line to the door panel. Should be
12Vdc.
No call tone to telephone but speech and Check terminal T on the telephone for continuity
back to the Sentry PCB
lock ok when handset is lifted
Check the call tone fuse on the Sentry PCB. (If it
repeatedly blows then there is a short on the T line to
the telephones)
Hum on the speech lines
PAGE 29 of 29
Ensure all intercom cables do not run close to higher
voltage cables
Try another amplifier at the door panel.
SENTRY TECHNICAL MANUAL
VER1.6
Northern Office
Videx Security Ltd
Unit 4-7 Chillingham Ind. Est.
Newcastle Upon Tyne
NE6 2XX
TEL 0870 300 1240
FAX 0191 224 5678
Southern Office
1 Osprey
Trinity Park
Trinity Way
London
E4 8TD
FAX 0208 523 5825
TECHNICAL SUPPORT
tech@videx-security.com
TEL 0191 224 3174
FAX 0191 224 4938
http://www.videx-security.com