User's Manual

GSM/802.11b RadioFrame System Method of Procedure
Pre-Installation
RadioFrame Networks, Inc.
37
3.7.5 Grounding
• No additional grounding is required
3.7.6 Environment
• Operating Ambient Temperature: 0
o
C to +40
o
C (+32
o
F to +104
o
F)
• Altitude: -200 to +8000 feet above mean sea level; above 8000', reduce maximum
operating ambient temperature by 2
o
C per 1000' to a maximum of 13000'
• Storage Temperature: -40
o
C to +70
o
C (-40
o
F to +158
o
F)
• Relative Humidity: 10-90% non condensing
• Shock: 40 g’s
• Vibration: Level 3 earthquake
• Keep product free from dust, wind, salt, liquids
3.7.7 Heat Load
• Not applicable
3.8 Interconnecting Cabling
Site planning requires true single point grounding. The Telco entrance and Telco
termination board should be located as close to the transmission line entry and AC
service entrance as possible. This enables the individual
ground leads to bond to a single
point, with the least amount of distance between the ground leads.
3.8.1 T1/E1
T1/E1 lines are used to connect the RadioFrame System with the Base Station Controller
(BSC). Each GSM/802.11b/g RFS site is typically fed with a single T1/E1 line, and
subsequently protected with a surge suppressor. The suppressor is located between the
"smart jack" (maintained by the local telephone company) and the Channel Service Unit
(CSU). The suppressor should be grounded downward directly to the master ground bus
(MGB) using a #6 AWG green wire.
The Telco board and the MGB should be mounted adjacent to each other on the same
wall (the coax ground and power ground should also be at this same location to achieve
single point grounding). The Smart Jack and T1/E1 suppressor are located on the Telco
board near the T1/E1 line entrance to the site.
3.8.2 Power Cabling
All electrical wiring for the site must meet the requirements of NEC and all applicable
local codes.