Samsung SPC-2010 User Manual page 12

System controller
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overview
Rear Side
Item
Power
RS-485/422
M
[PROGRAM] is not for user's accessing.
12_ overview
Tx1 Tx2 Tx3 TRx
PROGRAM
DC IN 12V
DC 12V input port. (
For RS-485/422 communication, connected to camera, DVR and other control devices.
Description
)

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