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2-2 Hardware
Installation
To enable console mode on port S1 for one-port models or on port S2
for two-port models, hold in the test switch while powering on the
Serial Server (see next section for additional details).
Connecting the Serial Server to an RS-232 Serial Device
The Serial Server has one or two standard PC-compatible 9-pin female D-
connectors, depending on the model. These serial ports use PC-compatible
9-pin male D-connectors. Note that the standard off-the-shelf 9-pin female
to 25-pin male PC cables will require a null modem in order to connect to
most printers or terminals. The pin-outs are as follows:
DE9
DTE
DCE
pin Signal
Signal
pin pin
1 Not
used
Not
used
- -
2
Receive Data
Transmit Data
2
3
3
Transmit Data
Receive Data
3
2
4
DTR out
DSR in
6
20
5 Signal
Ground
Signal
Ground
7 7
6 DSR
in
DTR
out
20 6
7
RTS out
CTS in
5
4
8
CTS in
RTS out
4
5
9 Not
used
Not
used
- -
Basically, the cable must connect input signals (e.g., Receive Data) on the
TROY Serial Server to the equivalent output signals (e.g., Transmit Data)
on the device and vice-versa.
Port S1 on single-port Serial Server models or port S2 on two-port models
can be set to operate in console mode to allow you to configure and
diagnose the Serial Server via a serial terminal (or PC with a terminal
emulation program). To enable the console mode manual, unplug the
power supply from the serial server, hold down the Test switch and
simultaneously plug in the power supply. If no characters are received on
port S1 during this time, then console mode is enabled on the port (if
characters are received, then the unit goes into a special diagnostic mode).
The port will remain in console mode until the unit is power off.
6 7 8 9
1 2 3 4 5