Paradyne 3172 Operator's Manual page 131

Signal
Shield
Signal Ground
Receive Ground
Send Common
Send Data
Receive Data
Request-to-Send
Clear-to-Send
Receiver Ready
Data Mode
Terminal Ready
Terminal Timing
Send Timing
Receive Timing
Local Loopback
Remote Loopback
Test Mode
3170-A2-GB20-30
Table D-6
RS-449 Cable Interface
Circuit
Mnemonic Number
—
SG
RC
SC
SD
RD
RS
CS
RR
DM
TR
TT
ST
RT
LL
RL
TM
March 1999
ITU-T
Direction
— —
102A —
102B —
— —
103 To DSU/CSU
104 From DSU/CSU
105 To DSU/CSU
106 From DSU/CSU
109 From DSU/CSU
107 From DSU/CSU
108/1, /2 To DSU/CSU
113 To DSU/CSU
114 From DSU/CSU
115 From DSU/CSU
141 To DSU/CSU
140 To DSU/CSU
142 From DSU/CSU
Pin Assignments
Pin
1
19
20
37
4 (A)
22 (B)
6 (A)
24 (B)
7 (A)
25 (B)
9 (A)
27 (B)
13 (A)
31 (B)
11 (A)
29 (B)
12 (A)
30 (B)
17 (A)
35 (B)
5 (A)
23 (B)
8 (A)
26 (B)
10
14
18
D-9