Adtran 550 Guia Do Utilizador
Section 2 Engineering Guidelines
ATLAS 550 System Manual
46
© 2004 ADTRAN, Inc.
61200305L2-1B
Legacy Data Option Module (P/N 1200342L1), EIA-232 and V.35
The Legacy Data Option Module provides four EIA-232 or V.35 interfaces (or any combination up to four)
for synchronous or asynchronous packet data applications. Table 29 gives the pinouts for both the EIA-232
and V.35 connections.
for synchronous or asynchronous packet data applications. Table 29 gives the pinouts for both the EIA-232
and V.35 connections.
Table 29. EIA-232 and V.35 Connection Pinouts
EIA-232 Pin
V.35 Pin
CCITT/V.24 Pin
Description
––
A
101
Protective ground (PG)
7
B
102
Signal ground (SG)
4
C
105
Request to send (RTS) from DTE
5
D
106
Clear to send (CTS) to DTE
6
E
107
Data set ready (DSR) to DTE
8
F
109
Received line signal detector (DCD) to DTE
20
H
108/2
Data terminal ready (DTR) from DTE
22
J
125
Ring indicator (RI) to DTE
3
R
104
Received data (RD-A) to DTE
3
T
104
Received data (RD-B) to DTE
17
V
115
RX clock (RC-A) to DTE
17
X
115
RX clock (RC-B) to DTE
2
P
103
Transmitted data (TD-A) from DTE
2
S
103
Transmitted data (TD-B) from DTE
15
Y
114
TX clock (TC-A) to DTE
15
AA
114
TX clock (TC-B) to DTE
24
U
113
External TX clock (ETC-A) from DTE
24
W
113
External TX clock (ETC-B) from DTE
––
NN
142
Test mode (TM) to DTE