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Appendix A
Cabling Diagrams
PIN NO.
1
2
3
4
5
7
8
15
17
20
25
1
2
3
4
5
7
8
15
17
20
25
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.
Data Cables
RS232C/V.24 * Cable
To FR111
Data 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
V.35 Adapter Cable**
* The FR111 RS232C interface circuits have been designed to meet the electrical
specifications 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, 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.
To Data
Device
Connector
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
Data connector