CTRL IN

GND

Idle state

CTRL IN

GND

Playback

2.Record: The input switches to Record (or Record Standby) as long the contact is closed.

CTRL IN

GND

Idle state

CTRL IN

GND

Record / Record Standby

3.Armed / Disarmed: If the contact is closed, the DVR will switch off alarm (alarm contact and motion alarm) operation. System alarm events are always active.

CTRL IN

GND

DVR armed

CTRL IN

GND

DVR disarmed

2.3.3Alarm Output Relay

The relay outputs provide either Normally Open or Normally Closed dry contacts.

Output relay in idle state

2.4 RS-485 keyboard / PTZ Installation

All functions can be remote-controlled by the EKB-500 universal keyboard. Using the EEPbus protocol, digital video recorders, keyboards and speed domes can be installed on one single RS-485 bus. One system can comprise up to 8 keyboards.

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EverFocus 264x2, 264x4 instruction manual RS-485 keyboard / PTZ Installation, Alarm Output Relay