Toshiba PROSEC T3H - Manual (Page 17)

User’s Manual
15
1. T3H Overview
(2) Expansion interface module
The expansion interface modules for the T3, i.e. IF311, IF351, IF312, IF352 and
IF353, are also used with the T3H. When the IF311 or IF312 is used with the T3H, up
to three expansion units can be connected, as same as the T3.
On the other hand, the IF321 is a dedicated expansion interface module for the T3H.
When the IF321 is used instead of the IF311, up to 6 expansion units can be
connected. In the maximum configuration, the T3H can control up to 76 I/O modules.
Type Description Remarks
IF321 For basic unit
(2 channels) Standard expansion type.
2 m max. between units, 6 m Only for T3H
IF311 For basic unit
(1 channel) max. in total cable length for each
channel. T3/T3H
common
IF351 For expansion unit
IF312 For basic unit Long-distance expansion type.
IF352 For middle expansion
unit 40 m max. in cable length.
(one channel only)
IF353 For end expansion
unit
IF321
CH1
CH2
Channel 2 expansion
(connected to the expansion #4)
Channel 1 expansion
(connected to the expansion #1)