External Input; External Output; Rs-485 Connection - Syscom Video HCZP572W Manual

4.2 EXTERNAL INPUT

It connect to an external sensor to receive day/night detection signals.
*Note: The above two settings can be selected at the same time.

4.3 EXTERNAL OUTPUT

The EXT-OUT lead and MD-OUT lead output voltage is different according to D/N and
MD settings. Please refer to below in detail.

4.4 RS-485 CONNECTION

D/N MODE -> EXT
• EXT-IN - OPEN : COLOR
- CLOSED : B/W
ALARM -> EXT
• EXT-IN - OPEN : ALARM OFF
- CLOSED : ALARM ON
1. EXT-OUT output voltage
The EXT-OUT lead output voltage for
COLOR and B/W is as following.
• EXT-OUT - COLOR : 0V
- B/W : 5V
2. MD-OUT output voltage
The MD-OUT lead output voltage is as
following in case MD event occurs
when 'ALARM/MD MENU' -> 'MODE' is set
to MD, MD+EXT
• MD-OUT - MD OFF : 0V
Connecting to the RS-485 : The Camera can be
controlled remotely by an external device or
control system, such as a control keyboard,
using RS-485 half-duplex. Connect Market Rx+,
Rx- to Tx+ and Tx- of the RS-485 control system.
10
- MD ON : 3.3V