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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 3 Electrical Cards
3.10 FMEC E1-120NP Card
3.10 FMEC E1-120NP Card
The ONS 15454 SDH FMEC E1-120NP card provides front mount electrical connection for
42 ITU-compliant, G.703 E-1 ports. With the FMEC E1-120NP card, each E1-42 port operates at
2.048 Mbps over a 120-ohm balanced interface. Twenty-one interfaces are led through one common
Molex 96-pin LFH connector. Figure 3-9 shows the FMEC E1-120NP faceplate and block diagram.
Caution This interface can only be connected to SELV circuits. The interface is not intended for connection to
any Australian telecommunications network without the written consent of the network manager.
5 TX 13 N 24 RX 13 N
6GND 25RX 12 P
7 TX 12 P 26 RX 12 N
8 TX 12 N 27 GND
9 TX 11 P 28 RX 11 P
10 TX 11 N 29 RX 11 N
11 GND 30 RX 10 P
12 TX 10 P 31 RX 10 N
13 TX 10 N 32 GND
14 TX 9 P 33 RX 9 P
15 TX 9 N 34 RX 9 N
16 GND 35 RX 8 P
17 TX 8 P 36 RX 8 N
18 TX 8 N 37 GND
19 GND — —
Table 3-9 E-1 Interface Pinouts on Ports 8 to 14 (continued)
Pin No. Signal Name Pin No. Signal Name