Cisco Systems 15454 SDH 3.12 FMEC E1-120PROB Card

3-23
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter3 Electrical Cards
3.12 FMEC E1 -120PROB Card
3.12 FMEC E1-120PROB Card
The ONS 15454 SDH FMEC E1-120PROB card provides front mount electrical connection for
126 ITU-compliant, G.703 E-1 ports. With the FMEC E1-120PROB card, each E1-42 port operates at
2.048 Mbps over a 120-ohm balanced interface. Each Molex 96-pin LFH connector supports 21 E-1
interfaces. Figure3-11 shows the FMEC E1-120PROB 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.
6 TX 30 P 30 RX 30 P 54 TX 40 P 78 RX 40 P
7 TX 29 N 31 RX 29 N 55 TX 39 N 79 RX 39 N
8 TX 29 P 32 RX 29 P 56 TX 39 P 80 RX 39 P
9 TX 28 N 33 RX 28 N 57 TX 38 N 81 RX 38 N
10 TX 28 P 34 RX 28 P 58 TX 38 P 82 RX 38 P
11 TX 27 N 35 RX 27 N 59 TX 37 N 83 RX 37 N
12 TX 27 P 36 RX 27 P 60 TX 37 P 84 RX 37 P
13 TX 26 N 37 RX 26 N 61 TX 36 N 85 RX 36 N
14 TX 26 P 38 RX 26 P 62 TX 36 P 86 RX 36 P
15 TX 25 N 39 RX 25 N 63 TX 35 N 87 RX 35 N
16 TX 25 P 40 RX 25 P 64 TX 35 P 88 RX 35 P
17 TX 24 N 41 RX 24 N 65 TX 34 N 89 RX 34 N
18 TX 24 P 42 RX 24 P 66 TX 34 P 90 RX 34 P
19 TX 23 N 43 RX 23 N 67 TX 33 N 91 RX 33 N
20 TX 23 P 44 RX 23 P 68 TX 33 P 92 RX 33 P
21 TX 22 N 45 R X 22 N 69 NC 93 NC
22 TX 22 P 46 RX 22 P 70 NC 94 NC
23 NC 47 NC 71 NC 95 NC
24 NC 48 NC 72 NC 96 NC
Table3-13 E-1 Interface Pinouts on Ports 22 to 42 (continued)
Pin No.
Signal
Name Pin No.
Signal
Name Pin No.
Signal
Name Pin No.
Signal
Name