Local Extensions

Local Extensions
Local Extensions
LE10
The LE10 is a telephone style local extension designed to provide remote
control of a conventional or trunked radio base station or repeater at distances up to
1000 feet. The LE series is easily configured for use with virtually any radio and allows
up to 25 units to be paralleled off a single radio. Advanced features of the LE series
include the ability to hear transmissions made from parallel units as well as those made
using the radio microphone. Standard features include: front panel transmit capability
(on-hook), handset with soft touch PTT switch , standard modular coil cord connections, parallel LED transmit indicator, one watt amplified speaker with volume control,
adjustable amplified modulation output and off-hook CTCSS disable (monitor).
Options include wall mount bracket, two channel control, intercom and wall plug power
pack.
LE20 The LE20 is a console style local extension with desk microphone
designed to provide remote control of a conventional or trunked radio base
station or repeater at distances up to 1000 feet. The LE series is easily configured
for use with virtually any radio and allows up to 25 units to be paralleled off a
single radio. Advanced features of the LE series include the ability to hear
transmissions made from parallel units as well as those made using the radio
microphone. Standard features include: front panel transmit capability, parallel
LED transmit indicator, one watt amplified speaker with volume control,
adjustable amplified modulation output, split bar desk microphone, intercom
and push button CTCSS disable (monitor). Options include two channel control
and wall plug power pack.
LE30 The LE30 is a console style local extension with internal electret
microphone designed to provide remote control of a conventional or trunked
radio base station or repeater at distances up to 1000 feet. The LE series is easily
configured for use with virtually any radio and allows up to 25 units to be
paralleled off a single radio. Advanced features of the LE series include the
ability to hear transmissions made from parallel units as well as those made using
the radio microphone. Standard features include: front panel transmit capability,
LED transmit indicator, one watt amplified speaker with volume control,
adjustable amplified modulation output, intercom and push button CTCSS
disable (monitor). Options include wall mount bracket, two channel control and
wall plug power pack.
LE40
The LE40 is a console style local extension with flexible goose-neck
microphone designed to provide remote control of a conventional or trunked
radio base station or repeater at distances up to 1000 feet. The LE series is easily
configured for use with virtually any radio and allows up to 25 units to be
paralleled off a single radio. Advanced features of the LE series include the
ability to hear transmissions made from parallel units as well as those made using
the radio microphone. Standard features include: front panel transmit capability,
LED transmit indicator, one watt amplified speaker with volume control,
adjustable amplified modulation output, intercom and push button CTCSS
disable (monitor). Options include wall mount bracket, two channel control and
wall plug power pack.
LE Series Specifications
Power Requirements
12 VDC to 16 VDC @ 35 mA idle, 175 mA maximum. Fused on circuit board.
Receive Audio Input Level
88 mVRMS to 880 mVRMS to provide full speaker output.
Audio Output to Speaker
1 Watt into 8 ohms with 13.8 VDC supply or using -WP option.
Transmit Audio Output
2 mVRMS to 565 mVRMS into 600 ohms.
Frequency Response
+/- 3dB from 300 to 3000 Hz. 1000 Hz reference.
Dimensions
9" x 4" x 7" inches
Weight
LE10 - 3 lbs, LE20 - 4 lbs, LE30 - 3 lbs, LE40 - 4 lbs. Option -WP - 1 lbs.
Connections
Screw terminal block for radio connections. 4 pin modular jack for handset. 6 pin
for desk microphone.
PTT Output
Solid state to ground, can sink up to 2.5 amps. Keying to plus voltage available as
an option.
Monitor Output
Normally closed or normally open relay contacts activated by hook switch or
optional push button.
F1/F2 Select (Optional)
Latched or momentary pulsed N.O. or N.C. relay contacts.
Intercom (Optional)
Optional momentary push button activated circuit that allows audio transmissions
between local extensions with out keying the radio. May be used on or off-hook.
Options
Installation Considerations
-M
The LE series local extension will work with any radio
system that will accept a 2 mVRMS to 565 mVRMS mic
audio input level and provide an 88 mVRMS to 880
mVRMS receive audio output level.
If the radio is going to be used as a control point, the receive
audio should be taken from a point after the squelch circuit
that is unaffected by the radio's volume control.
If the radio is not going to be used as a control point,
speaker output may be used by setting the radio's volume
control for a level that falls into the above range.
The LE series requires 12 to 16 VDC @ 175 mA. This may
be supplied from a central source at the radio site using a
conductor in the hook-up cable or by using the -WP option.
18 to 22 gauge multi-conductor cabling is recommended
with the number of conductors determined by the application
and options installed.
A minimum configuration will use 6 conductors, a maximum
will use 12.
Push button CTCSS disable. (Monitor)
-I
Push button intercom. May be used on or off-hook
to communicate with other local extensions with out
keying radio.
-2F
Push button selectable momentary or latching
relay output for frequency selection. LED indicators show
selected channel.
-WP
Wall plug-in transformer power pack.
-WM Wall mount kit. Includes snap on bracket for
remote and wall mount plate and hardware.
-DE
12 key DTMF encoder.
CPI Communications, Inc. • 941 Hensley Lane • Wylie, TX 75098-4909
Phone (972)429-7160 • (800) 869-9128 • FAX (888) 437-5360 or (972) 429-7165
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