80
AR Router
C613-03031-01 REV E
Figure 39: Pin wiring diagram for an X.21 DCE transition cable to an AMPLIMITE 50-way connector.
D50 SCSI-2 Male
(to router)
D15 Female
(to DTE)
Cable Shield
Insulating
Sheath
Notes:
(1)
→
Output from router;
←
Input to router.
(2) Use shielded cable with twisted pairs. Twisted pairing must be 1-26, 2-27, 3-28, etc.
(3) D15 connector shells to be metallised and fully shielded 360°.
(4) Standard cable length is 2.05m
±
0.05m.
(5) Ferrite must be fitted to cable no more than 25mm from rear of D50 SCSI-2 backshell.
(6) Cable version 1.1.
1
Shield
8
Ground
4
Receive
(A)
11
(B)
5
Indication (A)
12
(B)
2
Transmit
(A)
9
(B)
3
Control
(A)
10
(B)
6
S (Clock)
(A)
13
(B)
Connect to backshell
1
←
TD
12
37
←
RTS
14
39
→
RD
2
27
→
CD
5
30
→
TXC
20
45
FGND
21
FSELC
23
Pin 26
Pin 50
Pin 1
Pin 25
D50 SCSI-2 Male — Pin View
Pin 15
Pin 9
Pin 8
Pin 1
D15 Female — Pin View
Ferrite
Cable
A50X21C
