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7.12.9
IO-378 Optional I/O Expansion Board, Continued
The MAXPRO-Net software allows these remote alarm inputs to be utilized in exactly the
same way, as are those from a RD400 alarm input card.
The alarm test facility (SW1-8) automatically echoes the current alarm input state back
out the relay outputs. Using the output LED's the alarm input can be locally tested and
verified. Alarm inputs 1→7 are echoed to relay outputs 1→7. The tamper input on the
RD378/379 is echoed to relay output 8. Note this test facility should be disabled during
normal system operation.
Manual Iris Control
This output provides +ve and –ve voltages for manual iris control. This output is from
PL16 on the IO-378 board. There are 2 links associated with this output, that select
between 6 volt or 12 volt iris motors.
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•
These link positions do not affect the zoom or focus motor voltages.
7.12.10
RL-378 Optional I/O Expansion Board with 240V Relays.
The RL-378 plugs into the 20-way boxed header (J1) on the RD378/379 via a ribbon
cable. The RL-378 provides relay output contacts, alarm inputs and lens iris control. The
RL-378 cannot be mounted inside the RD378/379 case, so the ribbon cable supplied is
long enough to allow the RL-378 to be mounted externally.
Note: On the RD378/379 set switch SW3-6 ON. This enables the RD378/379 to control
the RL-378.
Relay Outputs
Four separate relay output contacts are provided. These are rated at 10A @240V AC.
When enabled in the MAXPRO-Net software, the relays are controlled by the following
outputs.
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•
•
•
The power required for 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, which lights when that output contact is closed.
Remote Alarm Inputs
There are 7 alarm inputs on the RL-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 10KΩ. The dip-switch settings are as follows.
Rev. C
LK1 and LK2 both off for 12V iris motors.
LK1 and LK2 both on for 6V iris motors.
Output 1 (relay 1)
Output 2 (relay 2)
Output 7 (relay 3)
Output 8 (relay 4)
Wash control
Wipe Control
7.12-10
HMXMU001018
10/06
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