Network Router User Manual

73
Appendix A - Cabling Diagrams
Trunk Cable
13 12 11 10 9 8 7 6 5 4 3 2 1
25 24 23 22 21 20 19 18 17 16 15 14
PIN NO.
1
2
3
4
5
7
8
15
17
20
25
1
2
3
4
5
7
8
15
17
20
25
To
External
Synchronous
Modem/DSU
Connector
CHASSIS GROUND (AA)
TRANSMIT DATA (BA)
RECEIVE DATA (BB)
REQUEST TO SEND (CA)
CLEAR TO SEND (CB)
SIGNAL GROUND (AB)
CARRIER DETECT (CF)
TRANSMIT CLOCK (DB)
RECEIVE CLOCK (DD)
DATA TERMINAL READY (CD)
PIN NO.
RS232C/V.24 * Link Cable
To MultiRouter
Link 1,2 or 3
RS232C/V.35
Connector
V.35 34-PIN
CONNECTOR (MALE)
25-PIN
CONNECTOR (FEMALE)
A
B
C
D
E
F
H
P
R
S
T
U
V
W
X
Y
a
1
7
4
5
6
8
20
2
3
12
22
23
17
25
18
15
21
PROTECTIVE GROUND
SIGNAL GROUND
REQUEST TO SEND
CLEAR TO SEND
DATA SET READY
DATA CARRIER DETECT
DATA TERMINAL READY
TRANSMIT DATA A
RECEIVE DATA A
TRANSMIT DATA B
RECEIVE DATA B
EXTERNAL TX CLOCK A
RECEIVE CLOCK A
EXTERNAL TX CLOCK B
RECEIVE CLOCK B
TRANSMIT CLOCK A
TRANSMIT CLOCK B
* The MultiFRAD RS232C interface circuits have been designed to meet the
electrical specificaitons given in EIA (Electronic Industries Association) RS232C
and CCITT (Consultative Committee International Telegraph and Telephone) V.24
Standards.
** When configured for V.35 interface operation on the link, the V.35 adapter
cable should be used. This cable uses a 25-pin female connector at one end and
a 34-pin winchester male connector at the other end.
V.35 Adapter Cable Configured on a RS232C/V.35**
Link Cable
C
H
M
S
W
AA
EE
KK
D
J
N
T
X
BB
FF
LL
A
E
K
P
U
Y
CC
HH
MM
B
F
L
R
V
Z
DD
JJ
NN
V.35 34-PIN CONNECTOR
Chassis Ground
Request To Send
Data Set Ready
Data Terminal Ready
Send Data (A)
Send Data (B)
Terminal Timing (A)
Terminal Timing (B)
Send Timing (A)
Send Timing (B)
Signal Ground
Clear To Send
Data Carrier Detect
Receive Data (A)
Receive Data (B)
Receive Timing (A)
Receive Timing (B)
As viewed from the connector side