Exicom Limited EX7100-1 Manual Do Utilizador

Página de 172
 
EX7100 Technical Manual - Installation of Antenna and Equipment 
 
©1999 Exicom Technologies (1996) Ltd 
2-4 
Issue 2 - February 2001 
2.4
 
Positioning the EX7100 Terminal 
Before deciding on the position of the terminal, consider the following: 
The antenna coaxial cable should be as short as practical to minimise transmission 
losses, 
The EX7100 requires good ventilation to allow generated heat to escape. Although 
the maximum temperature environment for the EX7100 is +60
°
C, lower temperatures 
will assist with trouble-free operation, as is the case with most electronic equipment, 
Always allow a gap of at least 2U
 (89mm) above/below the terminal and any other 
equipment, 
The EX7100 should be mounted close to a source of power, telephone wires (if 
required) and the antenna cable. Note: Ensure that sufficient room for any cables 
(including adequate bend radius etc) is present prior to positioning the terminal
 
Access to a good earth is essential (separate to mains earth) refer to Section 2.8, 
It may be necessary during the installation process (or subsequent servicing) to 
access the rear panel of the terminal. Sufficient room should therefore be provided 
around the terminal to allow access to any connections (such as the RS485 port that 
may be used for PC control during testing and set-up). 
 
 
 
 
 
 
                                                
1
 One U = 44.5 mm or 1 ¾ inch 
2
 Terminal depth of 425mm is measured from front panel handle to end of rear panel bracket. Additional 
depth allowance may be required to cater for connecting cables etc. 
WARNING 
Ensure that the equipment racks are stable and capable of 
supporting the weight of the EX7100 terminal before 
equipment installation. Note that unsecured racks may tip over, 
causing damage to equipment or personal injury