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4. Hardware Installation
This section describes the procedures for installing the CPM and connecting devices to the
unit.
4.1. Configure Setup Switches
When the CPM is shipped from the factory, the Setup Switches are configured for 9600 baud, 8
Bits-No Parity, DTR handshaking, verbose command response, and no echo (all switches
down). These switch settings are compatible with most applications. If the default settings are
not compatible with your application, change the switch settings as described in the following
subsections.
Setup Switches should be configured to match the communication parameters used by the
device attached to Port 1. This allows access to the CPM if the unit is initialized to default
parameters.
Note: Communication parameters (baud rate, parity, and etc.) can also be
individually selected for each CPM port by accessing the Command Mode and
invoking the /P command as described in Section 5.3.4. However, when the CPM is
initialized, parameters will return to the settings specified by the current Set-Up
Switch configuration.
4.1.1. Default Baud Rate (Sw1, Sw2, Sw3)
Setup Switches one through three select the default baud rate for all CPM Ports. The default
baud rate must match the baud rate your control device will use when communicating with the
CPM. If the control device will communicate via modem, select a default baud rate that is
compatible with the modem.
After the CPM has been installed, the port configuration command (/P) can also be used to
select individual baud rates for each port.
SW
Baud Rate
123
D D D 9600*
UDD300
D U D 1200
U U D 2400
D D U 4800
U D U 9600
D U U 19.2K
U U U 38.4K
* = Factory Default
4-1
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