User manual

4.2 REAR PANEL BUTTONS and CONTROLS
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1. Video Input: 16-Channel BNC Input Terminal
2. DC Power Input: 12V/4.2A
3. Alarm Input/ Relay Output: DB25 Female Terminal (Please refer to appendix)
4. Audio Input: 1-Channel RCA Input Terminal
5. Speaker Output: 2-Channel BNC Output Terminal
6. Main Monitor Output: 1-Channel BNC Output Terminal
7. Network Connection: 1-Ethernet Connection Terminal (optional)
8. SPOT Monitor Output: 1-Channel BNC Output Terminal
9. Fan