A-14
Appendix
Appendix
Pin Assignment on Optional Board Connectors
Half-pitch 36-pin connector
Pin
Signal
Description
Pin
Signal
Description
1
SGND
Signal ground
19
SGND
Signal ground
2
SGND
Signal ground
20
SGND
Signal ground
3
CABLE1
Cable1
21
CABLE2
Cable2
4
V35SD+
Send data+
22
V35RI
Call Indication
5
V35SD–
Receive data–
23
V35DR
Data set ready
6
V35RD+
Receive data+
24
366DLO
Data line occupied
7
V35RD–
Receive data–
25
V35CS
Ready to send
8
V35ER
Data terminal ready
26
366ACR
Abandon call
9
V35RS
Request to send
27
366DPR
Number display
10
V35ST+
Transmit
28
366CRQ
Call request
11
V35ST–
Transmit Timing–
29
366PND
Next no. request
12
V35RT+
Receive
30
366NB1
Numerical signal #1 bit
13
V35RT–
Receive Timing–
31
366NB2
Numerical signal #2 bit
14
V35TT+
Send
32
366NB4
Numerical signal #4 bit
15
V35TT–
Send Timing–
33
366NB8
Numerical signal #8 bit
16
SGND
Signal ground
34
SGND
Signal ground
17
SGND
Signal ground
35
SGND
Signal ground
18
SGND
Signal ground
36
SGND
Signal ground
CCITT V.35 connector
D-sub 25-pin connector
PCS-K32 V.35 adapter connector cable
(Cable side)
ISDN B jack
Modular connector
Pin
Signal
Description
Pin
Signal
Description
1
NC
5
RB
Receive–
2
NC
6
TB
Transmit–
3
TA
T
7
NC
4
RA
8
NC
V.35 (A/B) connector (female)
Specifications
1
8
1
13
14
25
18
1
36
19
(Rollabout Processor)
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