Juniper E Series Hardware Manual page 160

ERX 7.0.x Hardware Guide
144
CT1 and CE1 I/O Modules
Pin Signal
14 Port 16 TX TIP
15 Port 17 RX TIP
16 Port 17 TX TIP
17 Port 18 RX TIP
18 Port 18 TX TIP
19 Port 19 RX TIP
20 Port 19 TX TIP
no connect
21
no connect
22
no connect
23
no connect
24
25 no connect
Pin Signal
39 Port 16 TX RING
40 Port 17 RX RING
41 Port 17 TX RING
42 Port 18 RX RING
43 Port 18 TX RING
44 Port 19 RX RING
45 Port 19 TX RING
no connect
46
no connect
47
no connect
48
no connect
49
50 no connect