| Power Source |
Supplied from an external 24 V DC (21.6 - 26.4 V) power supply or
AC adapter AD-246 (option) or the equivalent |
| Power/Current Consumption |
10 W (AC operation), 310 mA (DC operation) |
| Audio Input |
2 channels, balanced (transformer isolated)/unbalanced changeable, 2 kΩ, LINE/MIC changeable, volume adjustable
Rated input: -20 dB (*2) (LINE)/-60 dB (*2) (MIC)
PAD function (-16 dB (*2)), removable terminal block (6 pins) |
| Audio Output |
2 channels, balanced (transformer isolated), 600 Ω or less
Rated output: 0 dB (*2) (unbalanced input)/-2 dB (*2) (balanced input), removable terminal block (6 pins) |
| Frequency Response |
50 Hz - 18 kHz
(48 kHz sampling frequency, PCM, 0 to -6 dB deviation referred to 1 kHz) |
| Distortion |
0.2 % or less (1 kHz, LINE signal level, 48 kHz sampling frequency, PCM, BPF) |
| Signal to Noise Ratio |
73 dB or more (LINE signal level, at rated output) |
| Separation |
70 dB or more (1 kHz, LINE signal level, BPF) |
| Audio Format |
WAV file |
| Number of Storable Audio Files |
Max. 8 |
| Storable Time of Audio File |
Max. 2 min. per audio file
(16 kHz sampling frequency, sub-band-ADPCM, monaural operation) |
| Control Input |
8 channels, no-voltage make contact input, open voltage: 24 V DC, short-circuit current: 2 mA or less, removable terminal block (9 pins) (Only Channel 8 equipped with failure detection.) |
| Control Input Failure Detection Section |
Connection resistance to make the function inactive: 20 kΩ ±5 %%%
Connection resistance to make the function active: 10 kΩ ±5 %%%
Connector cable: Twisted pair cable (shielded type is recommended)
Maximum cable distance: 10 m |
| Control Output |
8 channels, open collector output (polarized), withstand voltage: 30 V DC, control current: 50 mA max., removable terminal block (9 pins)
2 channels, relay output (non-polar), withstand voltage: 30 V DC, control current: 500 mA max., removable terminal block (4 pins) |
| Network Section |
Network I/F: 10BASE-T/100BASE-TX, Full-duplex/Half-duplex Auto-negotiation
Network protocol: TCP, UDP, ARP, HTTP, RTP, IGMPv2, FTP, NTP
Audio packet transmission system: Unicast (Up to 16 simultaneous transmissions), Multicast (Up to 64 simultaneous transmissions)
Connector: RJ45 connector
Voice sampling frequency: 8 kHz, 16 kHz, 32 kHz, 48 kHz
(controllable on the software)
Quantifying bit number: 16 bits
Voice encoding method: PCM, Sub-band ADPCM (controllable on the software)
Voice packet loss recovery: Silence insertion
Audio delay time: Min. 20 ms |
| Operation |
2 channels, Audio input level control (Convertible to Audio output level control) |
| Indicator |
2 channels, audio input, SIGNAL (green)/PEAK (red), 2 channels, audio output, SIGNAL (green)
LNK/ACT (green), BUSY (green), STATUS (green), ERROR (yellow), RUN (green) |
| Setting Switch |
Reset, grand lift changeable, audio input 2 channels PAD changeable, audio input 2 channels LINE/MIC changeable |
| SD Section |
For log storage (Max. 10000)
Media: SD/SDHC card (Max. 32 GB) (*3)
File system: FAT16, FAT32
※ Use only SD memory cards rated at 100mA current consumption or less.
※ No SD card provided. |
| Installation Method |
Rack, Desk, Surface mount |
| Operating Temperature |
-10 ℃ to +50 ℃ (14 ゜F to 122 ゜F)
(0 ℃ to +40 ℃ (32 ゜F to 104 ゜F) when AC adapter is in use) |
| Operating Humidity |
90 %RH or less (no condensation) |
| Finish |
Pre-coated steel plate, black, 30 % gloss |
| Dimensions |
210 (W) × 44.3 (H) × 258 (D) mm (8.27" x 1.74" x 10.16") |
| Weight |
1.7 kg (3.75 lb) |
