Hms-317 And Hms-318 Rear View - ADC HMS-317 Installation Manual

Overview
The HMS-317 (List 2 and List 3) shelf has one HMU and 28 HLU card slots. The HMS-318 (List 2 and List 2B)
shelf has one HMU and 22 HLU card slots. Communications between the HMU slot and the HLU card slots are
routed through the backplane.
Figure 2 shows the location of the connectors, wire-wrap pins and terminal boards located on the backplane of the
HMS-317 and HMS-318 shelves.
on the signal and pin assignments for these connectors, see
page 18.
Alarms Terminal
Board (TB2)
Alarms Terminal
Board (TB2)
2
Table 1 provides a description of each backplane component. For information
J32 J34 J31
Connector (P2)
TB2
AUX Rs232 PORT
HDSL LOOP 1 (XMT TO SPAN)
OS Rs232 PORT
J30
Connector (P3)
J34
J26 J25
TB2
OS Rs232 PORT HDSL LOOP 1 (XMT TO SPAN)
J24 Connector (P3)
Figure 2. HMS-317 and HMS-318 Rear View
July 15, 2002
"Appendix A - Signal and Pin Assignments" on
HMS-317
Connector (P1)
XMT FROM DSX RCV TO DSX
HDSL LOOP 2 (RCV FROM SPAN)
Input Power
Connector (P4)
Terminal Board
(TB1)
HMS-318
Connector (P2) Connector (P1)
XMT FROM DSX RCV TO DSX
HDSL LOOP 2 (RCV FROM SPAN)
Input Power
Terminal Board
Connector (P4)
(TB1)
LTPH-UG-1166-01
HMS-317 and HMS-318