E. Connectors, Cables, and Pin Assignments
9128-A2-GB20-80
September 2002
E-9
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)
Summary of Contents for 9126
Page 150: ...4 Configuration Options 4 106 September 2002 9128 A2 GB20 80 ...
Page 182: ...6 Security and Logins 6 16 September 2002 9128 A2 GB20 80 ...
Page 264: ...7 Operation and Maintenance 7 82 September 2002 9128 A2 GB20 80 ...
Page 348: ...A Menu Hierarchy A 4 September 2002 9128 A2 GB20 80 ...
Page 440: ...E Connectors Cables and Pin Assignments E 18 September 2002 9128 A2 GB20 80 ...