Specifications

Installing the Hardware
40 Enterasys Xpedition 2000 Getting Started Guide
1. Obtain one of the for Enterasys connector cables described in Table 19 on page 38 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