EPHD04+ HDcctv DVR
2.3.3Alarm I/O
The DVR provides four alarm inputs and two alarm outputs. Please refer to the table below for PIN assignment.
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| Alarm In |
| Alarm Out | ||
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Alarm Input |
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No. |
| Description |
| No. |
| Description |
1 |
| ALM_IN1 |
| 2 |
| ALM_IN2 |
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3 |
| ALM_IN3 |
| 4 |
| ALM_IN4 |
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G |
| GND |
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Alarm Input Contacts
This DVR provides one alarm input per camera. All inputs are programmable N.O. (Normal Open) or N.C. (Normal Closed). All settings are programmed in the ALARM / Event menu.
ALMIN | ALMIN |
GND | GND |
Alarm Input with N.O. contact in idle state | Alarm Input with N.C. contact in idle state |
Alarm Output Contacts
The relay output provides either Normally Open or Normally Closed dry contacts.
ALMOUT + | ALMOUT + |
ALMOUT - | ALMOUT - |
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