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SYNCHRONOUS MODEM ELIMINATORS SME–422, –V.35, –530, –X.21
Table A-2. SME–V.35: Pinout for 34-Pin Connectors J1 and J2
PIN
SIGNAL
DESCRIPTION
SIGNAL TYPE
DIRECTION
A
FG
Frame (Protective) Ground
Ground
——
B
SG
Signal Ground
Ground
——
C
RTS
Request to Send
Control
To DCE
D
CTS
Clear to Send
Control
From DCE
E
DSR
Data Set Ready
Control
From DCE
F
RLSD
Received Line Signal Detector
Control
From DCE
H
DTR
Data Terminal Ready
Control
To DCE
K
LT
Test Mode
Control
From DCE
P
SD (A)
Send Data (A)
Data
To DCE
R
RD (A)
Receive Data (A)
Data
From DCE
S
SD (B)
Send Data (B)
Data
To DCE
T
RD (B)
Receive Data (B)
Data
From DCE
U
SCTE (A)
Serial Clock Transmit Ext (A)
Timing
To DCE
V
SCR (A)
Serial Clock Receive (A)
Timing
From DCE
W
SCTE (B)
Serial Clock Transmit Ext (B)
Timing
To DCE
X
SCR (B)
Serial Clock Receive (B)
Timing
From DCE
Y
SCT (A)
Serial Clock Transmit (A)
Timing
From DCE
AA
SCT (B)
Serial Clock Transmit (B)
Timing
From DCE