Model
GLS-12
is designed to allow up to
12 standard telephone sets, multi-line
key systems or other loop start equip-
ment to be connected to and operate on
two-wire ground start CO trunk lines.
The
GLS-12
provides the CO ground
start line with the signalling required to
draw dial tone when the loop start equip-
ment goes off-hook. Incoming calls are
not affected by the
GLS-12
and ring
directly to the loop start devices.
Use Loop Start Devices on
Ground Start Trunks
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TECHNICAL
TECHNICAL
GLS-12
GLS-12
12 Circuit Ground to
Loop Start Converter
March 19, 2012
• 12 circuit automatic ground start to loop start
equipment converter
• Stackable to increase capacity
• Easy, straight forward installation via an
RJ-21X 25 pair connector
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• Allows PABX and key systems configured
for loop start trunks, as well as standard
telephones to be connected to C.O. ground
start trunks
• Eliminates wiring ground start buttons in
standard telephones
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Power:
The unit is powered by the 48V ground start C.O.
trunk lines - no AC power supply required
Dimensions:
133mm x 89mm x 44mm (5.25” x 3.5” x
1.75”)
Shipping Weight:
1.13 kg (2.5 lbs)
Environmental:
0°C to 32°C (32°F to 90°F) with 5% to
95% non-condensing humidity
Connections:
(1) RJ-21X female, 25 pair
