DBC0111F2V62-1

DBC0111F2V62-1

TWIN SAME BAND COMBINER 850
B-BAND

Designed to combine two 850MHz base stations within Band 5 B-band, the Kaelus DBC0111 provides a low loss combiner with excellent insertion loss and passive inter-modulation performance.

FEATURES

  • Combines legacy CDMA with single 5MHz LTE carrier
  • Extremely close (zero guardband) spacing
  • Designed for low passive inter-modulation
  • DC/AISG autosensing
  • Low insertion loss

technical specifications
Band Name R1 (CDMA) R1 (LTE)
Passband CH384, 425, 466 & 770 EARFCN 2585
Insertion loss 1.0dB typical 1.1dB typical
EVM 2% typical, 7% maximum 0.5% typical, 2% maximum
Group delay variation 270ns maximum 250ns maximum
Absolute group delay 300ns maximum (band-edge)
33ns typical (mid-band)
350ns maximum (band-edge)
75ns typical (mid-band)
isolation com port must be terminated in 50ohms
R1 (CDMA)
TX frequency range
35dB typical, 30dB minimum
R1 (LTE)
TX frequency range
35dB typical, 30dB minimum
R1 (CDMA)
RX frequency range
35dB typical, 30dB minimum
R1 (LTE)
RX frequency range
35dB typical, 30dB minimum
electrical
Impedance 50Ohms
Return loss 20dB minimum, 24dB typical.
Intermodulation products -153dBc maximum all ports with 2 x 20W carriers (out of band IM testing <3 minutes)
Maximum input power CDMA Channel:160W (average) / 1.6kW (PEP)
LTE Channel:80W (average) / 800W (PEP)
dc / aisg
The DC/AISG path is automatically selected. In bottom of the tower applications (combiner mode), each RF channel port is sequentially checked for the presence of DC voltage. If more than one port has voltage, the port that has the highest (programmed) priority is passed to the common port. If a short circuit is detected on the common port DC/AISG is disabled. In top-of-tower applications (splitter mode), DC/AISG is passed to all ports that do not present a short circuit. If a short circuit is detected, the shorted RF port will be disabled for DC/AISG while other RF ports remain connected. To reduce current consumption at low supply voltage, LEDs are sequentially enabled.
Input voltage range 7.5 – 30V DC
DC current rating 2.5A continuous
Compliance 3GPP, TS 25.461
Current consumption 15mA typical, 25mA maximum
Port priority (combiner mode) R1 (LTE) first, R1 (CDMA) second
LEDs 1 bi-colour LED per RF port connector
LEDs, bottom of tower application:  
- DC/AISG not present Off
- DC/AISG pass Green
- DC/AISG present, not passed Red
LEDs, top of tower application:  
- DC/AISG pass Green
- All ports disabled COM LED red
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range -20ºC to +65ºC | +4°F to +149°F
Ingress protection IP67
Altitude 3,000m | 10,000ft maximum
Lightning protection RF: ±5kA maximum (8/20us)
MTBF >1,000,000 hours
Compliance ETSI EN 300 019 class 4.1, RoHS
mechanical
Dimensions H x D x W 319 x 257 x 266mm | 12.56 x 10.13 x 10.47in
Weight 20.9kg | 46.1lbs
Finish Painted, light grey (RAL7035)
Connectors DIN 7-16 (F) x 6 long neck
Wind Load Front 426N, Side 468N
At 74m/s (AS/NZS 1170-2-2011 Structural design - Wind actions - Cyclone areas)
Mounting Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles
ordering information
Part Number R1 (CDMA) R1 (LTE) Description
DBC0111F2V62-1 CH 384, 425, 466, 770 EARFCN 2585 Twin SBC, B-band
DC AUTO R1 (LTE)
electrical block diagram
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM

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