Paradyne CSU User Manual Page 429

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E. Connectors, Cables, and Pin Assignments
9128-A2-GB20-80 September 2002
E-7
COM Port-to-Router Cables
The following tables provide the pin assignments for connecting the 1-slot
FrameSaver units 25-position communication port to various router auxiliary
(AUX) or console ports using standard cables.
Cisco 2500 Series Router RJ45 Jack
Cisco 7000 Series Router DB25 Plug
COM Port
Direction
AUX Port
Signal DB25 Pin # RJ45 Pin # Signal
DCE Transmit Data
(TXD)
2 To DTE 3 DTE Transmit Data
(TXD)
DCE Receive Data
(RXD)
3 From DTE 6 DTE Receive Data
(RXD)
DCE Request to
Send (RTS)
4 To DTE 1 DTE Request to
Send (RTS)
DCE Clear to Send
(CTS)
5 From DTE 8 DCE Clear to Send
(CTS)
DCE Data Set
Ready (DSR)
6 From DTE 7 DCE Data Set
Ready (DSR)
DCE Signal Ground
(SG)
7 4, 5 DTE Signal Ground
(SG)
DCE Data Terminal
Ready (DTR)
20 To DTE 2 DTE Data Terminal
Ready (DTR)
COM Port
Direction
AUX Port
Signal DB25 Pin # DB25 Pin # Signal
DCE Transmit Data
(TXD)
2 To DTE 2 DTE Transmit Data
(TXD)
DCE Receive Data
(RXD)
3 From DTE 3 DTE Receive Data
(RXD)
DCE Request to
Send (RTS)
4 To DTE 4 DTE Request to
Send (RTS)
DCE Signal Ground
(SG)
7 7 DTE Signal Ground
(SG)
DCE Carrier Detect
(CD)
8 To DTE 8 DTE Carrier Detect
(CD)
DCE Data Terminal
Ready (DTR)
20 To DTE 20 DTE Data Terminal
Ready (DTR)
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