ARTHUR HOLM AHDV01 User Manual - Page 10

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Connections

Rear the equipment, do you have the connections to power and external control

the equipment

AHnet: RJ45 CAT5 connector for addressable RS422 control. There is a loop through

connector to use as signal RS422 output. You can connect up to 30 monitors on the

same RS422 bus

Termination: Active (ON) the termination ONLY on the last monitor of the RS422

bus

GPI: Monitor external contact close control. SubD9 female

1. GPI1 +

2. GPI1 –

3. GPI2 +

4. GPI2 –

5. GPI3 –

6. GPI3 +

7. N.C.

8. +12Vdc (600mA max.)

9. Ground

Use GPI1 (1:12Vdc, 2:Ground) to open the equipment

Use GPI3 (6:12Vdc, 5: Ground) to close the equipment

Changing the monitor address:

‐ Push OK. One BEEP sounds

‐ Change the monitor address using UP or DOWN buttons

‐ Push OK. Two BEEP sounds, indicating that the new address has been

saved