Mindray BeneHeart D2, Руководство оператора

Страница: 173 / 208

Defibrillator/Monitor Operator’s Manual A - 15
A.10 Wi-Fi Specifications
A.11 Environmental Specifications
WARNING
•
The equipment may not meet the performance specifications if stored or used outside the specified
temperature and humidity ranges. If the performance of the equipment is degraded due to aging or
environmental conditions, contact your service personnel.
Protocol IEEE 802.11a/b/g/n
Modulation mode DSSS and OFDM
Operating frequency IEEE 802.11b/g/n (at 2.4G): 2.4 GHz to 2.495 GHz
IEEE 802.11a/n (at 5G): 5.15 GHz to 5.825 GHz
Channel spacing IEEE 802.11b/g/n (at 2.4G): 5 MHz
IEEE802.11a/n (at 5G): 20 MHz
Wireless baud rate IEEE 802.11b: 1 Mbps to 11 Mbps
IEEE 802.11g: 6 Mbps to 54 Mbps
IEEE 802.11n: 6.5 Mbps to 72.2 Mbps
IEEE 802.11a: 6 Mbps to 54 Mbps
Output power <20dBm (CE requirement: detection mode- RMS)
<30dBm (FCC requirement: detection mode- peak power)
Operating mode Infrastructure
Data security Standards: WPA-PSK, WPA2-PSK
Encryption: TKIP, AES
System capacity and resistance to wireless
interference When the following conditions exist simultaneously,
■
Number of the equipments supported by a single AP: ≤ 4
■
Each equipment can communicate with the CMS.
■
The weakest AP signal strength detected at the equipment’s position
cannot be less than -65 dBm.
■
When the distance between interfering devices and the equipment is
greater than 20 cm, and a co-channel interference Wi-Fi network (at
least -85 dBm weaker than the monitor’s network) and an adjacent-
channel Wi-Fi network (at least -50 dBb weaker than the monitor’s
network) also synchronously exist. Note: The interfering devices do
not include Wi-Fi devices. They include but are not limited to:
◆
2.4 G wireless devices (excluding Wi-Fi devices)
◆
Cellular mobile communication networks
◆
Microwave ovens
◆
Interphones
◆
Cordless phones
◆
ESU equipment
The total delay of data transmission from the monitors to the Central
Station: ≤ 4 seconds.
Wi-Fi network stability When the following conditions exist simultaneously,
■
Number of the equipments supported by a single AP: ≤ 4
■
Each equipment can communicate with the CMS.
■
The weakest AP signal strength detected at the equipment’s position
cannot be less than -65 dBm.
The time percentage of any equipment failing to transmit data to the CMS
does not exceed 0.1% over a 24-hour period.
Distinct vision distance The distinct vision distance between the equipment and the AP is greater
than or equal to 50 meters.