Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
In a system involving a single remote control link, the address field is generally left blank at all times.
For example, if you are entering SCL commands from a modem-equipped PC, which is connected over
a dialed voice circuit to a single modem-equipped IMUX 2000 multiplexer, then the SET command
discussed above could be entered as follows:
:TERM:SET:PTIME=EXT;
Note that the colon terminating the network address field is required, even when the address field itself
is left blank.
The two CM4 Common Modules in a drop/insert multiplexer can have the same or different addresses.
However, we recommend that both CM4 modules in any given drop/insert multiplexer always be
assigned the same network address. This practice will be assumed throughout this document. As
discussed below, commands can still be targeted to one CM4 module or the other in a drop/insert
multiplexer by including the appropriate subaddress - that is, either DI-A or DI-B.
To prevent unauthorized or accidental changes, multiplexer addresses cannot be changed remotely.
Rather, each multiplexer's address must be entered locally, usually at installation time, using the
GROUP and SET/ NEXT switches. (For more information on GROUP and SET/ NEXT switches, see
Paragraph 5.5 of this manual.)
7.3.2 SUBADDRESS FIELD
The second field in an SCL command line is the subaddress field. This field is used to identify a
specific common module, channel module, ILS, or DACS within a given IMUX 2000 multiplexer.
Valid IMUX 2000 multiplexer subaddresses are shown in Table 7-1.
In drop/insert multiplexers, only the DI-A module will accept and process commands targeted for
channel modules (commands with a subaddress of the form Cn, where n is a number from 1 to 36).
When using either a local controller or a remote controller to perform channel module operations on a
drop/insert multiplexer, always establish the connection through the remote port on the DI-A module.
If both CM4 modules in a drop/insert multiplexer are connected to a controller via a data network,
commands issued with the proper multiplexer address and channel module subaddress will
automatically be processed by the multiplexer's DI-A module and ignored by its DI-B module.
If the subaddress field is left blank, the default subaddress is TERM. This is a convenience feature for
human operators when addressing the CM4 module in a terminal multiplexer. The default cannot be
used with a drop/insert multiplexer. When using the default, the colon terminating the subaddress field
must still be present. The following command uses the default subaddress to send a configuration
inquiry to a terminal multiplexer:
::CONFIG?:;
IMUX 2000E1 RFL Electronics Inc.
February 28, 2006 7-6 (973) 334-3100
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