1260-X138 User Manual
Module Operation 3-2
Racal Instruments
©
2005
•
7-12: When the switch is set to this position, the module
addresses of the plug-ins in the 1260-100X Carrier are from 7
through 12, in the following pattern:
Figure 3-2 Front View – Module Addresses for 7 through 12
When setting module addresses for Adapt-a-Switch Carriers and
conventional 1260-Series modules, be sure that no address is
used by more than one plug-in or 1260-Series C-Size switching
module.
For instructions on setting module addresses for a conventional
1260-Series module, see the label on the side panel of the
module.
Operating Modes
The 1260-X138 may be operated either in
message-based
mode
or in
register-based
mode.
In
message-based
mode, the 1260-01T switch controller interprets
commands sent by the slot 0 controller, and determines the
appropriate data to send to the control registers of the 1260-X138
module.
A conceptual view of the message-based mode of operation is
shown in
Figure 3-3
below. It sends “1” to bit 5 while maintaining
the other bits to “0” thus closing only channel 5 and keeping other
channels open.
7
8
9
10
11
12