Avaya 3120 Installation Manual page 93

Table 42: Pinouts: X.21 DTE (26 Pin) to DB-15 Connector
26-pin
J1-21
J1-24
Drain
wire
J1-05
J1-18
J1-01
J1-14
J1-11
J1-10
J1-08
J1-09
J1-26
J1-04
J1-17
Table 43: Pinouts: X.21 DTE (26 Pin) to DB-15 Connector
26-pin
J1-21
Drain
wire
J1-05
J1-18
J1-01
Avaya Secure Router 3120 Installation Guide
Signal name
MODE_2 Local
connections
MODE_DCE
Shield
I_RXD/TXD+ Twisted pair
no. 8
I_RXD/TXD-
O_TXD/RXD+ Twisted pair
no. 5
O_TXD/RXD-
I_CTS/RTS+ Twisted pair
no. 2
I_DSR/DTR+
O_RTS/CTS Twisted pair
no. 3
O_DTR/DSR+
GND+ Twisted pair
no. 1
Not used
I_RXC/TXCE+ Twisted pair
no. 7
I_RXC/TXCE-
Not used Twisted pair
no. 4
Not used Twisted pair
no. 6
Not used Twisted pair
no. 9
Signal name
MODE_2 Local
connections
Shield
I_RXD/TXD+ Twisted pair
no. 5
I_RXD/TXD-
O_TXD/RXD+ Twisted pair
no. 8
Note Direction
—
<—
<—
—>
—>
<—
<—
—>
—>
—
<—
<—
Note Direction
—
<—
<—
—>
DB-15 Pin Signal name
J2-01 Shield_GND
J2-04 RECEIVE+
J2-11 RECEIVE-
J2-02 TRANSMIT+
J2-09 TRANSMIT-
J2-05 INDICATION+
J2-12 INDICATION-
J2-03 CONTROL+
J2-10 CONTROL-
J2-08 CCT GND
Not used
J2-06 TIMING+
J2-13 TIMING-
Not used
Not used
Not used
DB-15 Pin Signal name
J2-01 Shield_GND
J2-02 TRANSMIT+
J2-09 TRANSMIT-
J2-04 RECEIVE+
December 2010
Cable Pinouts
93