Grass Valley Adder II - Manual (Page 38)

34
Specifications
.....................................................................................................<0.01% at 1 kHz (@ +18 dBm)
Intermodulation Distortion (SMPTE) . <0.04%, 60 Hz + 3 kHz mixed 4:1 @ +8 dBm
Signal to Noise Ratio (A-weighted) .............. >95 dB, 20 Hz -20 kHz, ref. to +18 dBm
Audio, Digital ...........................................................................................................
AES/EBU Inputs and Outputs .................................................. unbalanced, 75-ohm BNC
Transmission MethodAES/EBU Digital Audio Pair conforming to AES3 specifications
External Sync......................................................................................................BNC, rear panel
Sample Rate.........................................................................................................................48 kHz
User Bits ................................................................................................................Not supported
Serial Data Transmission.........................................................................................
Data Connector ..............................................................................................9-pin Female "D"
RS232 ............................................................................................±8 Vp-p level, 20 kBps max.
RS422/RS485 ...............................................................Balanced TTL levels, 150 kBps max.
Jitter.............................................................................................................. <330 ns (3.07 MS/s)
Latency............................................................................ ~ 0.90 us plus 5 us per km of fiber
Intercom (882i module)...........................................................................................
Total intercom channels.............................................................................................................8
Intercom compatibility (per module)......................................................................................
................................................................. 4-Wire: 2 balanced, non-powered, 5-pin XLR-M
............................................................. Clear-Com: 2 unbalanced, powered, 3-pin XLR-M
...............................................RTS: 1 unbalanced, powered, dual-channel, 3-pin XLR-M
Signal-to-noise ratio (A-weighted)............................................................................. >90 dB
Frequency response ......................................................... +1/-3 dB, 80Hz-20kHz, +8 dBm
Contact Closure / GPIO ............................................................................................
Connector..............................................................................2 9-pin Female "D" connectors
Input contacts....... Normally High TTL 1 level (remote contact open/open circuit)
.............................................. Short to ground TTL 0 (remote contact closed/triggered)
Output contacts ............................ Form 1A SPST, "Normally Open" isolated contacts
Switch Voltage Rating............................................................................................. 50V AC/DC
Switch Current Rating.................................................................................................... 500 mA
Maximum Carry Current Rating ................................................................................. 500 mA
Contact Resistance.....................................................................................................< 0.5 Ohm
Mechanical/Electrical/Environmental....................................................................
2RU ................................................ 19" wide x 7.75" deep x 3.5" high, 8 lbs (3.5 kg)
3RU ................................................19" wide x 7.75" deep x 5.25" high, 9 lbs (3.5 kg)
4RU ................................................19" wide x 7.75" deep x 7.0" high, 10 lbs (3.5 kg)
5RU ............................................... 19" wide x 7.75" deep x 8.75" high, 11 lbs (3.5 kg)
6RU ............................................... 19" wide x 7.75" deep x 10.5" high, 12 lbs (3.5 kg)
7RU ...............................................19" wide x 7.75" deep x 12.25" high, 13 lbs (3.5 kg)
Power Connector.................................................... 4-pin XLR (male) x2, screw terminals
Input Voltage Range.......................................................................12 to 18 VDC, 4.5A max.
Power Consumption