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8-PORT SERIAL PORT MANAGER WITH INTEGRAL MODEM
4. Hardware Installation
4.1. Connecting AC Power to the Serial Port Manager
CAUTION
Operate this device only with the type of power source indicated on the
instrument nameplate. If you are not aware of the type of power service
available, please contact your local power company.
The Serial Port Manager autosenses for 100–240 VAC power. Plug the supplied
power cable into the receptacle on the back panel, then connect the power cable
to a grounded AC outlet.
4.2 Configure the 8-Position DIP Switch
The 8-position DIP switch selects default settings for the Serial Port Manager’s
RS-232 ports. The switch is located on the back panel, as shown in Figure 2-1.
When the Serial Port Manager is shipped from the factory, the switches are
configured for 9600 baud, 8 bits—no parity, RTS/ CTS handshaking, verbose
command response, and command echo on (all switches ON). These settings are
compatible with most applications. If the default settings are not compatible with
your application, change the switch settings as described in this section.
NOTES
Configure the DIP switches to match the parameters your control device
uses when communicating with the Serial Port Manager. This ensures
access to command functions, even if the Serial Port Manager is reset to
default parameters.
If the switch configuration is changed, new parameters don’t take effect
until the Serial Port Manager is reinitialized (as described in Section
4.3).
You can select operating parameters (baud rate, parity, etc.) for each
port using the /P command as described in Section 5.5.3. The /P
command can select different parameters for each Serial Port Manager
port.
When the Serial Port Manager is initialized, parameters will return to
settings specified by the DIP switches.
Summary of Contents for SW544A-M
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