Triconex Trident - I⁄O Extender Modules

I⁄O Extender Modules 115
Chapter 3 System Description
I⁄O Extender Modules
The following I⁄O Extender Modules Kits are available.
The purpose of an I⁄O Extender Module is to:
• Extend the TMR I⁄O bus from one I⁄O column to another I⁄O column
• Provide TMR I⁄O bus termination
• Provide additional input terminals for I⁄O module logic power
• Provide a protective earth (safety ground) connection
An I⁄O Extender Module contains:
• Three DB-9-pin I⁄O bus connectors, one per channel
• Two 24-volt logic power input terminal blocks, each with fuse and blown-
fuse indicators
• One protective earth terminal block
A maximum of eight baseplates may be stacked end-to-end in a column. To extend
a system beyond eight baseplates or to separate the baseplates so that they are not
connected end-to-end, a pair of I⁄O Extender Modules should be used.
Model Description
2281 I⁄O Extender Module Kit (without termination)
2291 I⁄O Extender Module Kit for I⁄O Baseplate (with termination)
2292 I⁄O Extender Module Kit for MP Baseplate (with termination)