Operator's Manual

Chapter 14 Specifications and standards
Tempus Pro User/Operator Manual - 41-2001EN-00 – Page 248
(6) The Data Centre application is installed on the first or primary PC to use the i2i application. The
Data Centre application is simply installed (selected) during the i2i installation process. Ports will need
to be opened on firewalls in and out of the DC and RC.
(7) A shared database is recommended between all RC installations. This requires a local wired
network.
(8) Web access is optional and allows users with i2i installed on a PC (with internet access) to share the
data elements of the real time display with other users via the web who don't have i2i. Web access is
automatically terminated when the Tempus disconnects from the i2i.
I2i transmission rates
ECG data and digital pictures take an appreciable amount of time to send to the Response Centre,
approximate times are as follows:
 12 lead ECG – < 30 seconds
 Digital photographs – < 30 seconds
These times are for guidance only and are based on a typical Ethernet network. Times may vary depending
on network equipment, configuration and usage.
14.4.2 Ethernet specification
The Ethernet connection has the following specifications:
 IEEE 802.3 compliant
 RJ-45 connection
 DHCP or fixed IP, Mask, Gateway
 Network cable: CAT5 at least 50 m
14.4.3 WiFi specification
The WiFi technology used by the Tempus operates using IEEE 802.11b and 802.11g standard. It operates
in the Industrial, Scientific and Medical (ISM) band between 2.412 GHz and 2.484 GHz.
WARNING
Per IEC60601-1-2 cl 5.2.2.5 b), the Tempus may be interfered with by other systems
even if they comply with CISPR emissions.
The WiFi technology has the following features:
WiFi Specification
The WiFi module has the following specifications:
Range ~ 91 m (300 ft)
Data Rate: CCK: 1, 2, 5.5, 11 Mb/s
OFDM 6, 9, 12, 18, 24, 36, 48, 54 MB/s
Security WEP, TKIP, WPA and WPA2 AES/CCMP per IEEE 802.11 i
Baseband Modulation 802.11g: OFDM
802.11b: DSSS/CCK
Quality of Service 802.11 e EDCF