Toshiba V Series User Manual page 39

Duplexing Interface Module (IF748/IF728)
The IF748/IF728 is a duplexing interface module which provides direct I/O expansion
function, as well as redundancy of transmission line. On its front panel, this module is
provided with tracking status and data connectors, and direct bus connectors.
Figure 1-16 shows the front panel of duplexing interface module (IF748).
Status LED
(RUN)
Online/standby LED
(ONL/STBY)
Primary/secondary switch
(PRI/SEC)
Tracking status/data
connector (TS/TD)
Direct bus connector
(CH1/CH2/CH3/CH4)
6F8C0882
Figure 1-16 Front Panel of Duplexing Interface Module (IF748)
1.6 Names and Functions of Modules
Tracking data
transmission/reception
LED (TX/RX)
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