Paradyne 9128-II User Manual
Page 364
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C. Connectors, Cables, and Pin Assignments
C-8
April
2002
9128-A2-GB20-60
Cisco 7000 Series Router – DB25 Plug
3COM Router – DB9 Socket
COM Port
Direction
AUX Port
Signal
RJ45 Pin #
DB25 Pin #
Signal
DCE Receive Data
( RXD)
2
From DTE
3
DTE Receive Data
( RXD)
DCE Signal Ground
( SG)
3
—
7
DTE Signal Ground
( SG)
DCE Transmit Data
( TXD)
4
To DTE
2
DTE Transmit Data
( TXD)
DCE Data Terminal
Ready (DTR)
5
To DTE
20
DTE Data Terminal
Ready (DTR)
DCE Carrier Detect
(CD)
6
To DTE
8
DTE Carrier Detect
(CD)
DCE Request to
Send (RTS)
7
To DTE
4
DTE Request to
Send (RTS)
COM Port
Direction
AUX Port
Signal
RJ45 Pin #
DB25 Pin #
Signal
DCE Receive Data
( RXD)
2
From DTE
2
DTE Receive Data
( RXD)
DCE Signal Ground
( SG)
3
—
5
DTE Signal Ground
( SG)
DCE Transmit Data
( TXD)
4
To DTE
3
DTE Transmit Data
( TXD)
DCE Data Terminal
Ready (DTR)
5
To DTE
4
DTE Data Terminal
Ready (DTR)
DCE Carrier Detect
(CD)
6
To DTE
1
DTE Carrier Detect
(CD)
DCE Request to
Send (RTS)
7
To DTE
7
DTE Request to
Send (RTS)