Filter
Top Products
T1, E1, and Digital Voice ModulesPassport 4400 Hardware Installation Manual
5-8
Figure 5-8. V.35 Data Port Connector Pin Assignments
Figure 5-9. X.21 Data Port Connector Pin Assignments
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Frame Ground
Send Data A (SD A)
Receive Data A (RD A)
Request-to-Send (R
TS)
Clear-to-Send (CTS)
Data Set Ready (DSR)
Ground
Data Carrier Detect (DCD)
(SCT A) Serial Click T
ransmit A
(SCR A) Serial Clock Receive A
(DTR) Data T
erminal Ready
(BI) Busy
Serial Clock T
rensmit B (SCT B)
(SCRE B) Serial Clock Receive External B
(SD B) Send Data
(RD B) Receive Data B
(SCR B) Serial Clock Receive B
(SCRE A) Serial Clock Receive External A
Unassigned (UNA)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Frame Ground
T
ransmit Data A (TD A)
(I A) Indicator A
(S A) Clock A
(C A) Control A
Indicator B (IB)
(TD B) T
ransmit Data B
(RD B) Receive Data B
(S2 B) Clock 2 B
Receive Data A (RD A)
(C B) Control B
(S2 A) Clock 2 A
(S2 B) Clock 2 B
Ground