Provides the rs449 interface shown in, Table d-6 – Paradyne ACCULINK 336x E1 User Manual
Page 123
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ACCULINK 336x E1 NTU
D-8
December 1996
3360-A2-GB20-20
Table D-6
RS449 Cable Interface
Signal
Circuit
Mnemonic
CCITT
Number
Direction
Pin
Shield
—
—
—
1
Signal Ground
SG
102A
—
19
Receive Ground
RC
102B
—
20
Send Common
SC
—
—
37
Send Data
SD
103
To NTU
4 (A)
22 (B)
Receive Data
RD
104
From NTU
6 (A)
24 (B)
Request-to-Send
RS
105
To NTU
7 (A)
25 (B)
Clear-to-Send
CS
106
From NTU
9 (A)
27 (B)
Receiver Ready
RR
109
From NTU
13 (A)
31 (B)
Data Mode
DM
107
From NTU
11 (A)
29 (B)
Terminal Ready
TR
108/1, /2
To NTU
12 (A)
30 (B)
Terminal Timing
TT
113
To NTU
17 (A)
35 (B)
Send Timing
ST
114
From NTU
5 (A)
23 (B)
Receive Timing
RT
115
From NTU
8 (A)
26 (B)
Local Loopback
LL
141
To NTU
10
Remote Loopback
RL
140
To NTU
14
Test Mode
TM
142
From NTU
18
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