... Input2chAlarm Output2chAlarm ActionPreset, patrol, pattern, SD/SDHC card recording, relay output, notification on client Input/OutputMonitor Output1.0Vp-p/75Ω, PAL ... /NTSC, BNCAudio InputAudio input (LINE input), 2-2.4V[p-p], output impedance: 1KΩ±10%Audio OutputLine level, impedance ...