HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
10
61247026L1-5A
CONNECTIONS
All connections of the T200 HTU-R, SP/60 mA are made through card edge connectors.
provides the card edge pin assignments for the T200 HTU-R, SP/60 mA circuit pack. The circuit
pack operates in either of the previously mentioned stand alone chassis, the ADTRAN HR4 HDSL
shelf (P/N 1242008L1), or the ADTRAN HR12 HDSL shelf (P/N 1242007L1).
When the circuit pack is installed in any of the HTU-R enclosures, all connections are made
through the enclosure backplanes.
Table 7. Card Edge Pin Assignments
Pin
Designation
Description
1
CH GND
Chassis ground
5
DS1-T1
DS1 receive out tip (to customer interface)
7
H1-T
HDSL Loop 1 tip (facility)
11
CH GND
Chassis ground
12
GND
Ground for protection switching
13
H1-R
HDSL Loop 1 ring (facility)
15
DS1-R1
DS1 receive out ring (to customer interface)
17
–48 VR
Local power return voltage
20
VCC
+5 VDC for protection switching
27
CH GND
Chassis ground
35
–48 V
Local power –48 VDC
40
PROT-1
Control line for protection switching
41
H2-T
HDSL Loop 2 tip (facility)
47
H2-R
HDSL Loop 2 ring (facility)
49
DS1-R
DS1 transmit in ring (from customer interface)
55
DS1-T
DS1 transmit in tip (from customer interface)
