First Alert 4800 - Manual (Page 11)

Getting to Know Your 4800 DVR
Model 4800 User's Manual
DVR R EAR P ANEL
1 USB Ports
USB ports for backup devices (flash drive, DVD recorder)
and mouse
2 Audio Output 1-channel audio output (2Vp-p, 600  )
3 Audio Input 4-channel audio input (2Vp-p, 600  )
4 Video Input 4-channel video input, BNC (1Vp-p, 75  )
5 Video Output Output to display monitor, BNC (1Vp-p, 75  )
6 Ethernet RJ-45 10/100 Base-T Ethernet port
7
ALARM IN
ALARM OUT
RS-422/RS-485 Alarm input (1-4, 5-6, Ground) – external sensor devices
Alarm output (7-8) – external alarm devices
PTZ camera control (9-12)
9 Power Power switch
9 DC 12V Power input
10 Fan Cooling fan air intake
2
1 3 4
5
6 8
7 9
10