4.1.2. DC Powered Units
The DC terminal block features two bus inputs as shown in
Figure 4.1. This allows the user to connect only one DC power
source, or connect two DC power sources where the second
source functions as a backup. When connecting the CMS to your
DC power source, first remove the protective cover from the
terminal block, attach the wires from the -48V DC power source
to the screw terminals, connect your ground line to the labeled
ground screw, and then replace the protective cover.
4.2. Configure Option Switches
When the CMS is shipped from the factory, the Option Switches
are configured for 9600 baud, 8 Bits-No Parity, RTS/CTS
handshaking, verbose command response, and command echo
ON (all switches Down). These settings are compatible with
most applications. If the default settings are not compatible with
your application, change the switch settings as follows.
The Option Switches should be configured to match the
parameters your control device will use when communicating
with the CMS. This will ensure access to command functions,
even if the unit is initialized to default parameters.
·If the Option Switch configuration is changed, new
parameters will not take effect until the unit is
initialized as described in Section 4.3.
·Operating parameters (baud rate, parity, etc.) can
be selected for each port using the /P command as
described in Section 5.5. The /P command can
select different parameters for each CMS port.
·When the CMS is initialized, parameters will
return to settings specified by the Option Switches.
CMS-16 / CMS-8 User's Guide
Figure 4.1: Terminal Block Assembly (DC Units Only)