Section 363-712-100
Revision 02
Page 3
Figure 2. Typical PG-Flex Configuration.
TABLE 1. PG-FLEX DISTANCES
Loop Length
Wire Gauge
12/24 Channel System
DC Resistance
26 AWG
(0.4 mm)
9.0 kft
(2.8 km)
750
Ω
24 AWG
(0.5 mm)
12.3 kft
(3.8 km)
638
Ω
22 AWG
(0.6 mm)
16.1 kft
(5.0 km)
521
Ω
19 AWG
(0.9 mm)
22.8 kft
(7.0 km)
367
Ω
2.07
Test access may be achieved by p116 V
on the subscriber’s COT tip lead for 1.5 seconds, then
removing the +116 V. Depending on the configuration of
the PG-Flex system, the selected subscriber drop
(assuming a working metallic bypass pair) will be
connected to either the corresponding COT subscriber line
or to the test access bus.
2.08
The test connection will be dropped when -116V
is applied to the subscriber’s COT tip for 1.5 seconds, then
removing the -116 V.
2.09
Test access may also be activated through the
RS-232 Maintenance Port located on the front of the COT
and RT Line Units, using an ASCII terminal.
3. SPECIFICATIONS
COT Power Supply Input Voltage
-42 to -56 V dc
COT Power Supply Input Power
145 Watts (maximum)
COT Power Supply Input Protection
Fuse (3A GMT)
COT Power Supply Output Voltage
± 130 Vdc (maximum)
COT Power Supply Output Power
100 Watts (maximum)
Operating Temperature & Humidity
-40° F to +150° F (-40° C to +65° C)
5% to 95% (non-condensing)
Operating Elevation
-200 ft to 13,000 ft (-60 m to 4,000 m)
Dimensions
Height:
6.75” (17.2 cm)
Width:
2.00”
(5.1 cm)
Depth:
10.50” (26.7 cm)
Weight
2.0 lbs. (0.9 kg)
