Samsung SHR-9716 - Manual (Page 15)

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connecting with other devices _ 11
ExTERNAL KEYPAD CONNECTION
The SSC-2000 keypad can be used to control up to 255 DVR and PTZ units.
Connect the DVR's RS485 (+/-) port to the SSC-2000 keypad's RS485 port.
• Turn the power off both units while connecting the SSC-2000.
• Pay attention to the polarity of the RS485 connections.
• Refer to the SSC-2000 manual when attempting a RS232 connection.
• When using a keypad device, please ensure that communication settings for both the DVR and the
keypad device are the same. Communication settings mismatch can prevent the keypad device and the
DVR from making normal communication. (Set communication protocols for both the keypad and the
DVR as Half Duplex.)
• It’s not possible to connect a PTZ device and a keypad device (SSC-2000) to the RS485 port and use
the two devices at the same time. In order to use a PTZ device with a keypad or another type of external
device, you will need to install a separate COM port expansion card.
SPR-9816-9716.indb 11 2008-07-03 오후 2:46:24