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ION-B User Manual
TLTN
TLTN Main Applications
The main applications of the TLTN module are:
• Connecting 3 donor sources with different services to one TFLN master optical TRX in a tri
band system, so that:
ÿ The TLTN combines the DL inputs coming from 3 different donor sources (carrying
different services) into an output signal entering the TFLN master optical TRX
ÿ The TLTN fi lters the UL input coming from the TFLN master optical TRX into 3 UL
outputs entering 3 different donor sources (carrying different services)
TLTN Insertion Loss
TLTN insertion loss = 3.0 ± 0.5dB
When designing the system, remember to take into account the insertion loss of the TLTN.
Warnings
The overall input power must not exceed +27dBm
TLTN Installation
Since the TLTN module doesn’t require any power supply it can be housed either in an active
or a passive TPRN sub-rack.
1. Unpack the kit which includes:
ÿ 1 TLTN
ÿ 2 RF jumpers (SMA-m), 2 x 40 cm
2. Carefully insert the TLTN module in any of the TPRN sub-rack slots and tighten the 4 screws
on the front corners.
3. Connect RF cables to the UL and DL ports, according to what has been planned by the
designer. Use an appropriate torque wrench to fi x each cable to relevant ports.
TLTN Ports
TLTN Models:
Low-band Medium-band High-band
TLTN 36
DL: 851-869 MHz
UL: 806-824 MHz
(US LMR800 band)
DL: 935-941 MHz
UL: 896-902 MHz
(US LMR800 band)
DL: 1710-2170 MHz
UL: 1710-2170 MHz
(Generic high band)
TLTN 44
DL: 800-1000 MHz
UL: 800-1000 MHz
(Generic Low band)
DL: 2110-2155 MHz
UL: 1710-1755 MHz
(US AWS1700 band)
DL: 1930-1995 MHz
UL: 1850-1915 MHz
(US PCS1900 Extended band)
TLTN 47
DL: 800-1000 MHz
UL: 800-1000 MHz
(Generic Low band)
DL: 1805-1880 MHz
UL: 1710-1785 MHz
(EU GSM1800 band)
DL: 2110-2170 MHz
UL: 1920-1980 MHz
(EU UMTS band)
Table 4.7.1: Different TLTN models
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