Instruction manual

ACU-1000 Operations Manual
Interoperability Now 3-21
5) Additional parties can be added to the call if required.
6) Any user can terminate his connection to the link by entering * #; all other
connections will be maintained. When only two parties remain in the conference
call, and either of these users enter * #, the link will be terminated.
3.6.4 Serial Control
Though operation of the CPM-4 via its Ethernet Port is recommended, the unit may also be
operated by Serial Control (as was the earlier CPM-2 module) and the ACU Controller. There
are some initial configuration options that may require the use of a terminal program if serial
control is used with the CPM-4. (These configuration options were set by dipswitches in the
CPM-2, and can also be set via a browser, the following applies only if there is no control
capability except serial.) One is the need to set the CPM-4 Baud Rate to match that of the
controlling computer; the other is to specify that units Chassis Configuration. That is, whether
the chassis is used alone, or if connected to another chassis via an expansion cable, whether it is
the Master Chassis or the Expansion Chassis. These configuration items are explained in the
following paragraphs.
3.6.4.1 Factory Default Settings
For the most part the CPM-4 factory default settings match those of the CPM-2. CPM-4
modules that are installed in a system at the factory are set to match the requirements of that
particular system. For example, if the ACU-1000 chassis is sold as part of an expanded (dual
chassis) system, the CPM-4 will be pre-configured to either “Master” or “Expansion” mode.
Table 3-3 CPM-2, CPM-4 Factory Defaults
CPM-2 Dipswitch
SW1 Position(s)
CPM-2 Default
Switch Setting
CPM-2 Default
Operation
CPM-4 Default
Operation
1,2 On, On 9600 Baud 115.2 K Baud
3
On
Remote Enabled
Remote Enabled
4
Off
No Serial Sync Char.
No Serial Sync Char.
6,7 Off, Off Single Chassis Single Chassis
8
Off
Normal Operation
Normal Operation
3.6.4.2 RS-232 Serial Port Baud Rate
In most cases the factory defaults for the CPM-4 are the same as the CPM-2. The exception is
the ACU-1000 RS-232 serial port baud rate. The default for the CPM-4 is 115.2K Baud.
Note: if ACU Controller software version 4.0 or later is being used there is no need to change
the CPM-4 baud rate. The ACU Controller software can be set to 115.2K baud, which is the
default for the CPM-4. But if an earlier version of ACU Controller software is being used then
the user must change the baud rate of the CPM-4 to 9600 as outlined here.