Optional I/O Expansion Board - Honeywell MAXPRO-Net Hardware Installation Manual

7.12.9 IO-378 Optional I/O Expansion Board
The IO-378 plugs into the 20-way boxed header (J1) on the RD378/379 via a ribbon
cable. The board is supported by stand-offs. The IO-378 provides relay output contacts,
alarm inputs and lens iris control.
Note: On the RD378/379 set switch SW3-6 ON. This enables the RD378/379 to control
the IO-378.
Note: Always remove the right-angle connectors from the RD378/379 PCB prior to fitting
the IO-378, otherwise the board will not fit correctly.
Relay Outputs
Eight separate relay output contacts are provided. Six of these outputs are rated at 1A
@30V. Outputs 7 and 8 have a higher rating of 2A @30V and are intended for wash and
wipe motors respectively. When enabled in the MAXPRO-Net software, four of the
outputs are utilized for special functions. These are:
•
•
•
•
The power required for these or any other auxiliary devices must be provided separately
and cannot be powered from the site receiver power supply circuit. Each relay output
has an associated LED (L1 to L8), which lights up when that output contact is closed.
Remote Alarm Inputs
There are 7 alarm inputs on the IO-378. Each can be individually DIP switch selected for
either digital or analogue mode. In digital mode, standard open circuit and closed circuit
conditions are expected. In analogue mode a normal input state requires a total loop
resistance of 10K. The dip-switch settings are as follows.
Rev. C
Relay 5 Manual Iris open.
Relay 6 Manual Iris close
Relay 7 Wash control
Relay 8 Wipe Control
DIP-SWITCH SETTINGS
SW1 DESCRIPTION
1 Alarm 1 mode
2 Alarm 2 mode
3 Alarm 3 mode
4 Alarm 4 mode
5 Alarm 5 mode
6 Alarm 6 mode
7 Alarm 7 mode
8 Alarm Test
ON OFF
Analogue Digital
Analogue Digital
Analogue Digital
Analogue Digital
Analogue Digital
Analogue Digital
Analogue Digital
Test Normal
7.12-9 HMXMU001018
10/06