Motorola DIMETRA MTS 2, Installation, Configuration And Basic Service Manual

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MTS 2 and MTS 4 Installation, Con
fi
guration and Basic Service Manual X.21, E1-120 Ω Cabling
Table 4-5 Site Link Connector E1 on Junction Panel (Continued)
Pin No. Function
3 Receive 2 positive
4 Transmit 1 positive
5
Transmit 1 negative
6 Receive 2 negative
7
Transmit 2 positive
8 Transmit 2 negative
Figure 4-54 Site Link Connector X.21 Pinout
Table 4-6 Site Link Connector X.21 on Junction Panel
Pin No. Function
1 Not Used
2
Tx Data B
3 Control B
4 Rx Data B
5
Indication B
6 Signal Timing B
7 Byte Timing B
8
Ground
9 Tx Data A
10 Control A
11 Rx Data A
12 Indication A
13 Signal Timing A
14 Byte Timing A
15 Not Used
6802800U74-N September 2009
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