Toshiba V Series User Manual page 36

Chapter 1 Overview of Loop Controller L3
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Figure 1-14 shows the front panel of direct I/O expansion module (IF721).
Figure 1-14 Front Panel of Direct I/O Expansion Module (IF721)
Duplexing Interface Module (IF719)
The module IF719 is used to exchange tracking data between the primary (P) and
secondary (S) blocks of the L3 main unit in duplex configuration. Connectors for the
tracking status and data cables are provided on the front panel.
Status LED
Direct bus connector
CH0: Channel 1
CH1: Channel 2
model 3000 Loop Controller L3 User's Manual - Basic Hardware -