EverFocus EDR-1640 - Manual (Page 12)

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Fan: Fan air outlet, please do not cover
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13 Mouse: PS-2 mouse connection (optional)
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LAN: RJ45 network socket 7
RS232 socket: 9-pin Sub-D control input for RS-232 remote control
8
RS485 socket: 2 x RJ45 socket (equal) for remote control via RS-485
keyboards and telemetry control (network-controlled)
9
Matrix monitors 1~4: Matrix monitor outputs 1~4
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SCSI-socket: EDA800s HDD expansion unit connection
14
15
S-Video: Main monitor Y/C output
Cascade IN / OUT: Monitor input / output for EDR cascading. This function allows one
monitor to be used for MAIN monitor display of several DVRs. Function is only available
upon DVR control through RS-485 keyboards.