3Com 3C6090 - NETBuilder II Dual Processor Engine Router, User Manual

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Connecting a PC, Terminal, or Modem 1-5
Connecting a PC,
Terminal, or Modem
After the I/O modules are installed and cabled according to the I/O module
installation guides, connect a PC running a terminal emulation program, a
terminal, or a modem to the Console port on the DPE module front panel.
You will use the PC, terminal, or modem to:
■
Configure the bridge/router software .
■
Use the boot monitor.
■
Review startup and system operation messages. Some of the messages
displayed by the terminal are more detailed than information displayed on
the LCD. These detailed messages may help you troubleshoot startup or
operation problems.
To connect a PC, terminal, or modem to the DPE module, follow these steps:
1 Obtain a cable to connect the console to the Console port on the DPE module
front panel.
Figure 1-1 shows the pinouts for a 9-pin female to 9-pin female PC cable. A
null modem-type cable can be used.
Figure 1-2 shows the pinouts for a 9-pin female to 25-pin terminal cable. A
null modem-type cable can be used.
Figure 1-3 shows the pinouts for a 9-pin female to 25-pin male modem cable. A
straight-through-type cable can be used.
WARNING: To eliminate cable noise emission in excess of FCC Part 15,
Subpart J, and EN55022 B, this device cable should be shielded and have
connectors with metallic backshells.
Figure 1-1 9-pin to 9-pin PC Cable (Null Modem-Type)
5 4 3 2 1
9 8 7 6
5 4 3 2 1
9 8 7 6
Name Abbr Pin Pin Abbr Name
9-pin female connector
9-pin female connector
2
3
1
8
7
5
4
6 3
2
7
8
1
5
6
4
TxD
RxD
RTS
CTS
CD
GND
DSR
DTR RxD
TxD
CD
CTS
RTS
Gnd
DTR
DSR
Transmit Data
Receive Data
Request to Send
Clear to Send
Carrier Detect
Signal Ground
Data Set Ready
Data Terminal Ready Receive Data
Transmit Data
Carrier Detect
Clear to Send
Request to Send
Signal Ground
Data Terminal Ready
Data Set Ready
To Console port
To PC serial port