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Enterasys Networks 2000 User Manual

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Installing the Hardware
40
Enterasys Xpedition 2000 Getting Started Guide
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 
 and connect 
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.
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.
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
GND
14
(reserved)
26
GND
39
(reserved)
2
RT+
15
(reserved)
27
RT-
40
(reserved)
3
CA+
16
(reserved)
28
CA-
41
(reserved)
4
RD+
17
(reserved)
29
RD-
42
(reserved)
5
LC+
18
(reserved)
30
LC-
43
(reserved)
6
ST+
19
GND
31
ST-
44
GND
7
GND
20
(reserved)
32
GND
45
(reserved)
8
TA+
24
(reserved)
33
TA-
46
(reserved)
9
TT+
22
(reserved)
34
TT-
47
(reserved)
10
LA+
23
(reserved)
35
LA-
48
(reserved)
11
SD+
24
(reserved)
36
SD-
49
(reserved)
12
LB+
25
GND
37
LB-
50
GND
13
GND
38
GND