Product manual

Product specifications, Base stations
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
6
EMC
Conducted emission : class B (EN 55022)
ESD : 8 kV air discharge, 4 kV contact discharge (EN 61000-4-2)
Immunity to electromagnetic fields:5V/m (EN 61000-4-3)
Electrical fast transients (EFT) : 0.5 kV on signal wires (EN 61000-4-4)
Surge : 0.5 kV differential mode (EN 61000-4-5)
Conducted continuous disturbance :3 V (EN 61000-4-6)
General specifications
Powering method : Locally, or centrally via 2 data pairs (UTP) and 1 optional pair
Connector type : RJ45 (8 pins)
Width × depth × height : 200 × 165 × 56 mm (including mounting bracket)
Weight : 470 grams
Material housing : ABS moulded plastic
Colour housing : light grey (NCS 2005-Y20R)
Operating voltage : 21 to 56 Vdc
Power consumption : 3.0 W typical, 5.0 W maximum
Transmitter radio specifications
All specifications mentioned here are measured at the RF connectors.
RF carriers : 1897.344 MHz − n*1.728 MHz (0 ≤ n ≤ 9)
Frequency band : 1880 to 1900 MHz
Centre frequency stability : ± 25 ppm (crystal controlled)
Modulation method : GFSK (Gaussian filtered Frequency Shift Keying)
3 dB signal band width : as per EN 301406:2001
Power spectrum : equal to GFSK with BT = 0.5
Frequency deviation : as per EN 301406:2001
AM modulation : as per EN 301406:2001
Peak output power at
RF-connector : 19 to 24 dBm
Output spurious : as per EN 301406:2001
Harmonics : as per EN 301406:2001
Ripple : as per EN 301406:2001
Typical RF output impedance : 50 Ω
Receiver radio specifications
All specifications mentioned here are measured on the RF connector.
Receiver sensitivity : typical −86 dBm with a B.E.R. = 10
−3
at the radio interface
Input compression : better than −30 dBm at −1 dB compression point
Maximum input level : as per EN 301406:2001
Typical C/I ratio : as per EN 301406:2001
Typical C/N ratio : as per EN 301406:2001
Unwanted emissions : as per EN 301406:2001
Base station cable
Signal and power transport : 2 unshielded twisted pairs
Express power transport : 1 optional unshielded pair (may be twisted)
Maximum length : 1.9 km with standard CAT5 cable (FTP CAT5e 4x2x0.5).