Component
Terminal board
connection
Description
AUX OUT
35 - 36
Fire alarm out for controlling smoke evacuation damper or combustion gas
fan.
Light/CP
37 - 38
Light or circulation pump (if IHCW has been selected, the CP function is
activated)
USB
USB
For service use
DI SPARE
TIMERBUTTON2/TIMERBUTTONEU2
AI SPARE
CO2B/RHB
OUT
24 V supply for MLON/MTCP
Service HMI
Service HMI
Plug for connecting extra HMI panel, see section "Servicing - connection of
extra HMI control panel"
Jumper
JP1
Option for termination, internal BUS
JP2
Termination option, external BUS, see section 1
JP3
BP2/M1
Configuration BP2/M1 (motor size 1: PWM, motor size 2: REL). Set at the
factory.
JP4
BP3/M2
Configuration BP3/M2 (motor size 1: PWM, motor size 2: REL). Set at the
factory.
Web server (accessory)
Web server
CN2
Ethernet
Web server
CN3:
Connection of BMS
Web server
JP2
To be terminated if BMS is connected to CN3 (shown as ON).
2.5.2 Connecting shielded cable to MODBUS
Cable type
MODBUS requires shielded cable of type 2 x 2 x 0.25
□
twinned pair conductors.
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Installation of the VEX
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Summary of Contents for VEX320C
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