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7.11.11
RL-378 Optional I/O Expansion Board with 240V Relays.
The RL-378 plugs into the 20-way boxed header (J1) on the RD-378 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 RD-378 case, so the ribbon cable supplied is long
enough to allow the RL-378 to be mounted externally.
Note: On the RD-378 set, switch SW3-6 ON. This enables the RD-378 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.
•
•
•
•
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 that lights up when the output contact is closed.
Control of 240V AC Pan Tilt Units using the RL-378
The RL-378 can be used to control 240V AC pan/tilt units by programming the MAXPRO-
Net system to intercept keyboard joystick commands and issuing relay output control
commands to the RD-378. The following example assumes that relay 1 is connected to
Tilt Up, relay 2 to Tilt Down, relay 3 to Pan Left, and relay 4 to Pan Right.
Key Replacement Macros – MAXPRO-Net
Within Setmax, edit the Intercept Keyboard Keys data as shown.
Key
96 (tilt up )
97 (tilt down)
98 (pan left)
99 (pan right)
The key replacement macros switch the required control outputs on, at the currently
selected camera, when joystick commands are received. When the joystick is released
the outputs are switched off by the key release macros.
Rev. C
Output 1 (relay 1)
Output 2 (relay 2)
Output 7 (relay 3)
Output 8 (relay 4)
Key Replacement Macro
[C@C=^11]
[C@C=^12]
[C@C=^17]
[C@C=^18]
Wash control
Wipe Control
Key Release Macro
[C@C=^21,C@C=^22]
[C@C=^22,C@C=^21]
[C@C=^27,C@C=^28]
[C@C=^28,C@C=^27]
7.11-14
HMXMU001018
10/06
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