User's Manual

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 31/346
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Table 12: RS-422 data cable specifications
2.4 – Installing the base station components
2.4.1 – BS site requirements
BS X-Pol RBS Txs and X-Pol RBS Rxs are mounted on elevated sites such as building rooftops or
towers. General site requirements apply to the building or tower as a whole. Rooftop/tower requirements
apply to the outside equipment environment. Equipment room requirements apply to the indoor
environment that houses the LMDS, power utility hook-ups, and passive components such a 12:2
Combiner/Splitters, Bias-Ts and lightning arresters.
General site requirements
The following general requirements apply.
Access to power
The equipment room must be provided with a power utility hook-up capable of supplying power to
the BS equipment.
Specification Description
Cable supplier and part number
Indoor cable: Delco - 398087P
Outdoor cable: Delco - 398087
Impedance 120 W
Maximum length 1000 m (3000 ft)
Connectors and supplier part number
Indoor/outdoor cable RJ45 connector:
Stewart 943-SP-370808 SM2
Outdoor LEMO connector:
LEMO USA FGG.1K.304.CLCC.60Z
(strain relief: LEMO USA GMA.1B.065.DN)
Conductor
(7/34) 26 AWG or (7/32) 24 AWG
Tinned annealed copper
Conductor resistance 141.4 W/1000 m (43.1 W per 1000 ft)
Shielding
Double shielded
Shield #1 = aluminum/mylar tape
Shield #2 = 36 AWG tinned copper braid
Shielding conductor resistance 12.5 W per 1000 ft
Weight
Indoor cable: 24.5 lb per 1000 ft
Outdoor cable: 25 lb per 1000 ft
Operating temperature
Indoor cable: –5 to +55°C (+23 to +131°F)
Outdoor cable: –40 to +50°C (–40 to +122°F)
Fire rating
Indoor cable: CSA FT-6, NEC 800, UL 910
Outdoor cable: CSA FT-4