Paradyne Compshere 3000 Series Installation Manual page 77

RS-449 Port Interface Connector
The RS-449 Port Interface connector and adapter cable
information is shown in Figure B-8 and Table B-6.
530
DB-25
Signal
Plug
Shield
1
TD-A
2
TD-B
14
RD-A
3
RD-B
16
TXC-A
15
TXC-B
12
RXC-A
17
RXC-B
9
RTS-A
4
RTS-B
19
CTS-A
5
CTS-B
13
DTR
20
RLSD-A
8
RLSD-B
10
DSR
6
Sig. Common
7
RL
21
LL
18
Rcv. Common
23
TT-A
24
TT-B
11
TM
25
Sig. Common
22
Figure B-8. EIA-530-A to RS-449 Adapter Cable
3000-A2-GA31-D0
DB-37 449
Socket Signal
Shield
1
TD-A
4
TD-B
22
RD-A
6
RD-B
24
TXC-A
5
TXC-B
23
RXC-A
8
RXC-B
26
RTS-A
7
RTS-B
25
CTS-A
9
CTS-B
27
DTR-A
12
RR-A
13
RR-B
31
DM-A
11
Sig. Common
19
RL
14
LL
10
Rcv. Common
20
TT-A
17
TT-B
35
TM
18
DM-B
29
DTR-B
30
496-14323a
July 1999
T1 CSU and T1 DSU/CSU Interface Connectors
Table B-6
RS-449 Port Interface Connector
Circuit
Signal
Label
Shield
Signal Ground SG
Receive Ground RC
Send Common SC
Send Data SD
Receive Data RD
Request to Send RS
Clear to Send CS
Receiver Ready RR
Data Mode DM
Terminal Ready TR
Terminal Timing TT
Send Timing ST
Receive Timing RT
Local Loopback LL
Remote RL
Loopback
Test Mode TM
To/ Pin
ITU #
From #
1
102A 19
102B 20
37
103 To 4 (A)
DCE 22 (B)
104 From 6 (A)
DCE 24 (B)
105 To 7 (A)
DCE 25 (B)
106 From 9 (A)
DCE 27 (B)
109 From 13 (A)
DCE 31 (B)
107 From 11 (A)
DCE 29 (B)
108/1, /2 To 12 (A)
DCE 30 (B)
113 To 17 (A)
DCE 35 (B)
114 From 5 (A)
DCE 23 (B)
115 From 8 (A)
DCE 26 (B)
141 To 10
DCE
140 To 14
DCE
142 From 18
DCE
B-7