Hitachi TD61-2472 - Manual (Page 71)

3 Wireless Radio Standards IEEE802.11b (11Mbps wireless LAN) (wi-fi)
Protocol CSMA/CA
Modulation DBPSK (1Mbps)
DQPSK (2Mbps)
CCK (5.5&11Mbps)
Communications technique DSSS (Direct Sequence Spread Spectrum)
Frequency band 2.4 ~ 2.497 GHz (14Ch)
Output power 10 mW/MHz max.
Communications distance Open space
*1
160m (11Mbps)
200m (2Mbps)
Indoors 30m (11Mbps)
40m (2Mbps)
Data rate 1/2/5.5/11 Mbps
Minimum reception
sensitivity -84dBm@11Mbps(Typ.)
[email protected](Typ.)
-89dBm@2Mbps(Typ.)
-93dBm@1Mbps(Typ.)
Handover Layer 2 *2
4 Software Call control protocol SIP
Audio encoding G.711 A-Law/ -Law 64kbps μ
G.729A 8kbps
Network settings DHCP (client operation only)/manual
NAT(Static)
Priority control DiffServ DSCP
Security SSID
WEP key 64/128/256 bits
802.1x (MD5, EAP-TLS)
Operational features NTP (client operation only)
Syslog (client operation only)
Transmission path
diagnostics function IP communications testing with Ping command
Firmware upgrade TFTP (client operation only)
5 Battery Lithium ion battery Capacity 3.7V 1350mAH Li-ion
Call time About 3 hours 10 minutes
Standby time About 55 hours *3
Battery charging time About 3 hours
*1 The communications distance can vary with the weather, temperature, etc.
*2 L3 handover is also possible with the AP side specifications.
Hitachi Cable 67