Section 2: Technical Data
Revision 4
19
X.21 WAN C
ABLE
Part No:
CABX21SN03M0PP00
Sales Feature: ARG-WANX21C
A
37 Way D-Type Plug with UNC 4-40 locking screws.
B
15 Way D-Type Plug with M3 locking screws.
C
6 twisted pair screened cable - each core is 7/0.203mm (24 a.w.g.) tinned copper
stranded wire, nominal capacitance of 98pF/m, impedance of 77
Ω
at 1MHz,
screened with aluminised tape and a tinned copper wire drain.
D
3 metres.
Pin Connections
End A
Name
Cable Notes
End B
1
Receive (Rx-B)
11
20
Receive (Rx-A)
4
4
Transmit (Tx-A)
2
23
Transmit (Tx-B)
9
24
Control (Ctl-A)
3
5
Control (Ctl-B)
10
2
Indicate (Ind-A)
5
21
Indicate (Ind-B)
12
3
SE-Timing (S-A)
6
22
SE-Timing (S-B)
13
6
Ground
-----
8
Connect pin 7 to pin 6 at End A only.
Pin 19 at end A is connected to the Screened Cable Drain Wire.
Twisted pair
Twisted pair
Twisted pair
Twisted pair
Twisted pair
D
A
B
C
