![](/images/new-backgrounds/1244373/24437319x1.webp)
WDR-516S Rear
11 | 10 | 9 | 7 |
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12 13
14 | 15 |
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| 19 |
| 17 | 18 | 20 | |
| 16 |
(7)Power switch
(8)Ethernet connector
(9)BNC connector for Video input
(10)Audio input / output connector
(11)RS232 connecter (9Pin
(12)Terminal block for RS232 & 422/485
(13)Terminal block for Sensor input
(14)Terminal block for Relay output
(15)Video output for MONITOR or VCR
(16)Video input type/impedance select & remote controller switch
(17)IEEE1394 connecter
(18)USB connecter
(19)Power connector (DC12V)
(20)GND
| 10 | Rev 1.0(93/11) |