Andrew Wireless Innovations Group BCEL-1915BA User Manual
Rel 00 08/04/98
BriteCell Dual Band Operative and maintenance Handbook
Tekmar Sistemi S.r.l. keeps the right of any change or improvement without prior notice.
Pag.11/15
7.2.4
TFL BSI
The Base Station Interface module TFL-BSI provides the required level optimization between the
Base Station Transmitters and the BriteCell system.
It includes two independently variable attenuators in uplink and downlink.
7.2.5
CROSSBAND COUPLER TLC2501
The TLC2501 Crossband Coupler allows coupling uplink and downlink signals of services in the
lower cellular band (800-1000 MHz) and in the upper cellular band (1700-2000 MHz).
7.2.6
2-WAYS RF COMBINER TLC 2502/TFL-UDD
These devices are based on hybrid two ways couplers, plus resistive attenuators. They provide
RF power splitting or combing for DL and UL paths.
The Downlink RF input must be connected to the TX path at the appropriate level. The two RF
outputs must be connected to the RF inputs - SMA female of the local interface.
The Uplink RF output must be connected to the BTS RX path.
The two RF inputs must be connected to the RF output of the local interface
.
7.2.7
3-WAYS RF COMBINER TLC 2503
These devices are based on hybrid three ways couplers, plus resistive attenuators. They provides
RF power splitting or combing for DL and UL paths.
The Downlink RF input must be connected to the TX path at the appropriate level. The three RF
outputs must be connected to the RF input - SMA female of the local interface.
The Uplink RF output must be connected to the BTS RX path.
The three RF inputs must be connected to the RF output of the local interface
7.2.8
PAGER DL COMBINER TLC-DB
This device is a Dual -band coupler for POCSAG pager injection at local interface. It combines a
280 MHz POCSAG pager carrier on the downlink path at the appropriate level. It can be used in
conjunction with TFA2xx1H-x/2 and TPA320, to provide indoor extended coverage of POCSAG.
7.3
REMOTE RF OPTICAL TRANSCEIVER
Refer to Table 3.
This compact unit contains all the required functions. A stainless steel casing protects the
hardware.
Two RF ports and two optical connectors are placed on one side of the case.
When inserting the optical connectors, take care that handling is smooth enough not to damage
the fibre; remove dust cap only immediately before making connections.
A 50
Ω
termination must be present in the unused RF ports.
An additional SMB-plug connector carries Pager signals and DC to the auxiliary active radiators
TPA320, through the 3m connecting cable (only TFAad1H-c/2).
The TFA ad1H -c(see datasheet "Ordering information - Part number") version is not provided
with the internal antenna. 2 RF-ports are supplied in order to connect 2 external antennas.