E ccitt v.35 pinouts – CANOGA PERKINS 2240 Fiber Optic Modem User Manual
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Canoga Perkins
Table 4-E.
CCITT V.35
Pinouts
Function
Pin
CCITT
Direction
(A/B) Circuit Number
Shield
A
101
-
Signal Ground
B
102
-
Request to Send (aka RTS)
C
105
to modem
Clear to Send (aka CTS)
D
106
from modem
Data Set Ready (aka DSR)
E
107
from modem
Data Channel Receive Line
F
109
from modem
Signal Detector (aka DCD)
Data Terminal Ready
H
108
to modem
(aka DTR)
Calling Indicator (aka RI)
J
125
from modem
Local Loopback
L
141
to modem
Remote Loopback
N
140
to modem
Received Data (aka RXD)
R/T
104
from modem
Receiver Signal Element
V/X
115
from modem
Timing, DCE Source
(aka SCR)
Transmitted Data (aka TXD) P/S
103
to modem
Transmitter Signal Element
Y/AA
114
from modem
Timing, DCE Source
(aka SCT)
Transmitter Signal Element
U/W
113
to modem
Timing, DTE Source
(aka SCTE)
Test Indicator (aka TM)
NN
142
from modem
Secondary Transmit Data
K*
-
to modem
(aka STD)
Secondary Receive Data
M*
-
from modem
(aka SRD)
Extra Clock for Receive Data FF/DD*
-
to modem
NOTE 1: The 2240 connects the Shield pin to chassis ground.
* These pins carry signals which are not defined by V.35 or ISO 2593-1993.
If a straight-through cable is used, verify compatibility of this pin usage
with the customer's equipment.