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Cable and Ethernet Specifications
D-3
Modem Cable
Modem Cable
Table D-2 gives pinout information for a modem cable with RJ-45 and DB-25
connectors.
Table D-2
Modem Cable
PortMaster Office Router
S0 (Serial) Port
External
Modem
RJ-45
Name
Definition
Direction
DB-25
(DCE)
1
RTS
Request to Send
Output
4
2
DTR
Data Terminal Ready
Output
20
3
TXD
Transmit Data
Output
2
4
GND
Signal Ground
NC
5
GND
Signal Ground
7
6
RXD
Receive Data
Input
3
7
DCD
Data Carrier Detect
Input
8
8
CTS
Clear to Send
Input
5
Summary of Contents for PortMaster OR-HS
Page 4: ......
Page 18: ...1 2 PortMaster Office Router Hardware Installation Guide ...
Page 36: ...Connect an External Modem Optional 2 18 PortMaster Office Router Hardware Installation Guide ...
Page 46: ...Replacing a Fuse A 10 PortMaster Office Router Hardware Installation Guide ...
Page 54: ...Ordering Instructions B 8 PortMaster Office Router Hardware Installation Guide ...
Page 70: ...Index Index 4 PortMaster Office Router Hardware Installation Guide ...