Aposonic A-S1602R25 - Manual (Page 12)

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2.2 Back Panel
1. Video Input Connectors (1-4/8)
Connect system cameras to these BNC connectors. The internal 75 Ω
termination is always ON.
2. Video Out (MAIN/CALL)
Connect TV monitor to the BNC connectors for main/call monitor display.
3. HDMI Connector
Connect HDMI monitor to the HDMI connector for main monitor display.
4. USB Mouse Connector
Connect to USB 2.0 compatible mouse.
5. Ethernet Connector
Connect this unit to a 10/100Base-T Ethernet network through this port.
6. eSATA Connector (Optional)
Connect this port to external SATA storage device for HDD extension.
7. Audio In/Out Connector (AUDIO IN 1-8/4, OUT 1-2)
Connect to Audio In 1-8/4/Out 1-2 Cable. The cable is as shown below.