20-18
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 20 DLPs D300 to D399
DLP- D329 Install 120-Ohm E-1 Cables with DB-37 Connectors to the FMECs
DLP-D329 Install 120-Ohm E-1 Cables with DB-37 Connectors to the FMECs
Step 1 Prepare two DB-37 cables for each FMEC-DS1/E1 card that you will install in the shelf assembly.
The connection from the E-1 37-pin DB connector for Ports 1 to 7 to the external balanced 120-ohm
E-1 interfaces must be done according to Table 20-4.
The connection from the E-1 37-pin DB connector for Ports 8 to 14 to the external balanced 120-ohm
E-1 interfaces must be done according to Table 20-5.
Purpose This task installs the 120-ohm E-1 cables on the FMEC-DS1/E1 card.
Tools/Equipment Twisted-pair cables with DB-37 connectors
Prerequisite Procedures NTP-D220 Install the Power and Signal FMECs, page 1-7
Required/As Needed As needed
Onsite/Remote Onsite
Security Level None
Table 20-4 Pinout for E-1 Interfaces on Ports 1 to 7
Pin No. Signal Name Pin No. Signal Name
1 GND 20 RX 7 P
2TX 7 P21RX 7 N
3TX 7 N22GND
4TX 6 P23RX 6 P
5TX 6 N24RX 6 N
6 GND 25 RX 5 P
7TX 5 P26RX 5 N
8TX 5 N27GND
9TX 4 P28RX 4 P
10 TX 4 N 29 RX 4 N
11 GND 30 RX 3 P
12 TX 3 P 31 RX 3 N
13 TX 3 N 32 GND
14 TX 2 P 33 RX 2 P
15 TX 2 N 34 RX 2 N
16 GND 35 RX 1 P
17 TX 1 P 36 RX 1 N
18 TX 1 N 37 GND
19 GND — —