176WJ-HD316A: 1 V [P-P] / 75 Ω, vertical timing pulse multiplexed,x8 (1 to 8 CH) (BNC)WJ-HD309A: 1 V [P-P] / 75 Ω, vertical timing pulse multiplexed,x6 (1 to 6 CH) (BNC)GeneralSPECIFICATIONPower source:Power consumptionAmbient operatingtemperatureAmbient operatinghumidityDimensionsWeightInput/OutputVideoAudioOthersVideo input connectorsCascade input connectorVideo output connectorsMonitor output connectorsMonitor output connector(VGA)S-video output connectorVideo output connector(front panel)Audio input connectorsExpansion connectorAudio output connectorsCopy connectorsControl connectorsAlarm port120 V AC, 60 Hz75 W+5 °C to +45 °C (41 °F - 113 °F)Less than 85 %420 mm (W) X 88 mm (H) X 350 mm (D) [16-9/16" (W) X 3-7/16" (H) X13-3/4" (D)] (excluding rubber feet and projections)9 kg (19.8 lbs.)WJ-HD316A: 1 V [P-P] / 75 Ω, with auto-termination loop-thru,x8 (9 to 16 CH) (BNC)WJ-HD309A: 1 V [P-P] / 75 Ω, with auto-termination loop-thru,x3 (7 to 9 CH) (BNC)1 V [P-P] / 75 Ω (BNC)WJ-HD316A: 1 V [P-P] / 75 Ω, active loop-thru output, x8 (1 to 8 CH)(BNC)*11 V [P-P] / 75 Ω, loop-thru output, x8 (9 to 16 CH) (BNC)WJ-HD309A: 1 V [P-P] / 75 Ω, active loop-thru output, x8 (1 to 8 CH)(BNC)*11 V [P-P] / 75 Ω, loop-thru output, x1 (9 CH) (BNC)1 V [P-P] / 75 Ω, x2 (BNC)RGB output, x1 (15-pin D-sub)Y = 1 V [P-P] / 75 Ω, C=0.286 V [P-P] / 75 Ω, x1 (S-video output connec-tor)1 V [P-P] / 75 Ω, x1 (RCA pin)–10 dBv, 10 KΩ, unbalanced, x4 (RCA pin)High-speed serial interface, 480 Mbps (theoretical value), x1High-speed serial interface, 480 Mbps (theoretical value), x2Emergency recording input*2, available space warning output*3 (fordevices connected to copy connectors), HDD trouble output*3, cameratrouble output*3, trouble output*3, electricity failure recovery completionoutput*4, time adjust input/output*5, sequence switching input/output*5,electricity failure detection input*2, external recording mode switching*2(25-pin D-sub) , +5 V output *6WJ-HD316A: 1 to 16 CH alarm input*2, 1 to 16 alarm output*3, alarmrecovery input*2, alarm suspension input*5 (25-pin D-sub)WJ-HD309A: 1 to 9 CH alarm input*2, 1 to 9 alarm output*3, alarm recov-ery input*2, alarm suspension input*5 (25-pin D-sub)–10 dBv, 600 Ω, unbalanced, x2 (RCA pin)