User manual

Technical Reference
Campus-RS Fractional Interface Card User Manual A-3
PINOUTS
This section shows data port pinouts for each Fractional Interface Card. There
are also pinouts for crossover cables for the V.35, RS-449, RS-530, and
RS-530A ports.
V.35
V.35 Straight Cable Pinouts
Pin Mnemonic Description Direction
A* B†
A FG Frame (Protective) Ground Ground
B SG Signal Ground Ground
P S SD Send Data To DCE
R T RD Receive Data From DCE
C RTS Request to Send To DCE
D CTS Clear to Send From DCE
E DSR Data Set Ready From DCE
H DTR Data Terminal Ready To DCE
F RLSD Received Line Signal Detector From DCE
U W SCTE Serial Clock Transmit Ext To DCE
Y AA SCT Serial Clock Transmit From DCE
V X SCR Serial Clock Receive From DCE
L LL Local Loopback To DCE
N RL Remote Loopback To DCE
NN LT Test Mode From DCE
* Pins provide a non-inverted signal.
† Pins provide an inverted signal.