GFK-1504K Chapter 6 Expansion Modules 6-5
6
IC200ETM001
Expansion Transmitter Module
Pass-Through Serial Port
When the Expansion Transmitter is connected to a Network Interface Unit (NIU)
module in an I/O station, firmware upgrades to the NIU are performed via the
Expansion Transmitter’s pass-through serial port. (If there is no Expansion
Transmitter installed, firmware upgrades are made via direct connection between the
programmer and NIU, as shown first in the illustration below.) The same serial
cable, IC200CBL002, is used in both cases.
PS
NIU
Programmer
PS
ERM
Expansion
Cable
Terminator Plug
Programmer
Firmware Update
Serial Cable
IC200CBL002
ETM PS
NIU
6 ft
ersaMax I/O Station, No Expansion
ersaMax I/O Station with
Expansion Transmitter