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Installing the Hardware
To attach the segment cables to your Dual Serial or Quad Serial – C/CE expansion module:
1.
Obtain one of the for Enterasys connector cables described in
the single LFH-60 high density connector to the XP WAN interface you wish to use.
2.
Plug the remote end of the connector for each port you wish to use into its respective
CSU/DSU data port.
Dual HSSI Line Card
The Dual HSSI line card uses a 50-pin High Speed Serial Interface (HSSI) connector to link to a
Channel Service Unit/Data Service Unit (CSU/DSU). Enterasys offers a 3 meter (10 foot) 50-pin
HSSI connector cable (part number SYS-HSSI-CAB) to connect Dual HSSI line cards to remote
CSU/DSU modules.
The following table maps the pin assignments for Enterasys's 50-pin HSSI connector for the Dual
HSSI line card.
Pin
Signal
1
GND
2
RT+
3
CA+
4
RD+
5
LC+
6
ST+
7
GND
8
TA+
9
TT+
10
LA+
11
SD+
12
LB+
13
GND
Note:
Because neither connector at the ends of the SYS-HSSI-CAB cable is keyed, you can
simply plug either end of the cable into either your Dual HSSI line card or the remote
HSSI CSU/DSU data port.
40
Pin
Signal
14
(reserved)
15
(reserved)
16
(reserved)
17
(reserved)
18
(reserved)
19
GND
20
(reserved)
24
(reserved)
22
(reserved)
23
(reserved)
24
(reserved)
25
GND
Table 19 on page 38
Pin
Signal
26
GND
27
RT-
28
CA-
29
RD-
30
LC-
31
ST-
32
GND
33
TA-
34
TT-
35
LA-
36
SD-
37
LB-
38
GND
Enterasys Xpedition 2000 Getting Started Guide
and connect
Pin
Signal
39
(reserved)
40
(reserved)
41
(reserved)
42
(reserved)
43
(reserved)
44
GND
45
(reserved)
46
(reserved)
47
(reserved)
48
(reserved)
49
(reserved)
50
GND
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