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* 0 dB = 1 V

Power Source Power supply device that complies with IEEE802.3af standard or
12 V DC (supplied from the AC adapter (option))
Power Consumption 4.2 W (at rated), 6 W (max.)
Speech Method Hands-free or handset conversation
Audio Frequency Range 300 Hz – 7 kHz
Hands-free Speaker: 5.7 cm (2.24″) cone-type, 0.6 W, 8 Ω
Microphone: Omni-directional electret condenser microphone
Handset Receive path: Dynamic type, Send path: Electret condenser microphone
External Control Input Terminal No-voltage contact input, open voltage: 5 V DC, short-circuit current: 5 mA or less,
screwless connector (2P)

Network Section

Network I/F: 10BASE-T/100BASE-TX (Automatic-Negotiation)
Network protocol: TCP/IP, UDP, HTTP, RTP, ARP, ICMP, IGMP
Audio packet transmission system: Unicast, Multicast
Number of paging destinations: Unicast (max. 16), Multicast (max. 191)
Connector: LAN: RJ45 connector (PoE compatible)
PC: RJ45 connector (not-compatible with PoE)
Voice sampling frequency: 16 kHz, 8 kHz (controllable on the software)
Quantifying bit number: 16-bit
Voice encoding method: Sub-band ADPCM, Cryptosystem
Voice packet loss recovery: Silence insertion
Audio delay time: 80 ms, 320 ms (controllable on the software)
Indication Status lamp
Installation Method Desk/Surface mounted master station
(When mounting to the wall, use the optional YC-280.)
Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity 90 %RH or less (no condensation)
Finish Body, Handset: ABS resin, gray
Dimensions 148 (W) × 208 (H) × 70.5 (D) mm (5.83″ × 8.19″ × 2.78″)
(excluding a curl cord section)
Weight 740 g (1.63 lb)
Accessory CD (for PC setting, maintenance use, emergency message creating software) …1
Option Wall mounting bracket: YC-280, AC adapter: AD-1210P, AD-1215P