Figure 99: Fast Ethernet 48-Port Pic; Figure 100: Vhdci To Rj-21 Cable; Table 45: Rj-21 Pin Assignments - Juniper Networks Hardware Manual

Table 45: RJ-21 Pin Assignments

Ethernet Port Numbers
0, 12, 24, 36
1, 13, 25, 37
2, 14, 26, 38
3, 15, 27, 39
4, 16, 28, 40
5, 17, 29, 41
6, 18, 30, 42
7, 19, 31, 43
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Figure 99: Fast Ethernet 48-port PIC

Figure 100: VHDCI to RJ-21 Cable

Table 45 on page 255 describes the RJ-21 cable pinouts.
NOTE: RJ-21 pin numbers 25 and 50 do not appear in the table because they
are ground connectors.
RJ-21 Pin Assignment
TX -
2
4
6
8
10
12
14
16
Appendix F: M120 Cable Connector Pinouts
TX + RX -
27 1
29 3
31 5
33 7
35 9
37 11
39 13
41 15
RX +
26
28
30
32
34
36
38
40
255