Meridian Link/Customer Controlled Routing Installation And Upgrade Manual page 179

Table 48
NT1R03CA 50-pin four-port cable pinout (IPE Module)
From To port
DB-50 DB-50
(male) (female)
1 25
2 2
3 3
4 4
5 25
6 6
7 7
8 8
9 50
10 10
11 11
12 12
13 13
14 14
15 50
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
* One NT1R03CA cable connects to ports 1, 3, 5, 7, and the Ethernet port. The other
NT1R03CA cable connects to ports 2, 4, 6, and 8.
Port* Signal
name
1 or 2 GND2
1 or 2 TXD2
1 or 2 RTS2
1 or 2 DSR2
3 or 4 GND4
3 or 4 TXD4
3 or 4 RTS4
3 or 4 DSR4
5 or 6 GND6
5 or 6 TXD6
5 or 6 RTS6
5 or 6 DSR6
5 or 6 TXCI6
5 or 6 RI6
7 or 8 GND8
7 or 8 TXD8
7 or 8 RTS8
7 or 8 DSR8
7 or 8 TXCI8
7 or 8 RI8
Ethernet C+
Ethernet T+
Ethernet R+
Ethernet SG
FGND FGND
Meridian Link Release 5C/CCR Release 3C Installation and Upgrade Guide
Chapter 9: Meridian Link/CCR interface cabling 161
From To port
DB-50 DB-50
(male) (female)
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
Port* Signal
name
1 or 2 DCD2
1 or 2 RXD2
1 or 2 CTS2
1 or 2 DTR2
3 or 4 DCD4
3 or 4 RXD4
3 or 4 CTS4
3 or 4 DTR4
5 or 6 DCD6
5 or 6 RXD6
5 or 6 CTS6
5 or 6 DTR6
5 or 6 RXCI6
5 or 6 TXCO6
7 or 8 DCD8
7 or 8 RXD8
7 or 8 CTS8
7 or 8 DTR8
7 or 8 RXCI8
7 or 8 TXCO8
Ethernet C-
Ethernet T-
Ethernet R-
Ethernet +12VF
FGND FGND