Nortel DCT1900 Technical Product Manual page 66

Technical Product Manual - DCT1900
Product Specifications, Base Stations
Receiver Radio Specifications
All specifications mentioned here are measured on the RF connector.
Receiver sensitivity
Input compression
Maximum input level
Typical C/I ratio
Typical C/N ratio
Unwanted emissions
Base Station Cable
Signal and power transport
Express power transport
Maximum length
Type
Twisted pair
Twisted pair
Twisted pair
Double twisted pair
(J–Y (St)Y 2 2 0.6)
Table 2–1 Maximum Cable Length for Locally Powered Base Stations
Wire size Power Supply Voltage
(∅)
0 EPP
26 awg 418
24 awg 627
22 awg 1026
* Cable lengths should never exceed the values given in table 2–1, because of data limitations
Table 2–2 Maximum Cable Length for Centrally Powered Base Stations
2-2
: typical -92 dBm with a B.E.R. = 10
: better than -30 dBm at -1 dB compression point
: as per PWT
: as per PWT
: as per PWT
: as per PWT
: 2 unshielded twisted pairs
: 1 optional unshielded pair (should be twisted)
: see Tables 2–1 and 2–2.
Cable
Wire size (Æ) Capacitance
AWG
26ga 15 pF/ft.
24ga 15 pF/ft.
22ga 40 pF/ft.
22ga 40 pF/ft.
Maximum Cable Length (feet)
27.5 V
1 EPP
627
941
1539
Maximum cable length
Superimposed noise
8 mV/pHz
CLU 11/2 SLU/CLU-S
7540 ft. 4920 ft.
11480 ft. 6880 ft.
6880 ft. 4260 ft.
6160 ft. 3930 ft.
Power Supply Voltage
42 V
0 EPP 1 EPP
1405 2107
2107 3161
3448* 5172*
-3
at the radio interface
Superimposed noise
10 mV/pHz
CLU 11/2 SLU/CLU
6560 ft. 4260 ft.
9840 ft. 6230 ft.
5900 ft. 3930 ft.
4920 ft. 3280 ft.
Power Supply Voltage
48 V
0 EPP 1 EPP
1842 2763
2763 4145*
4522* 6782*
Specs-DCT1900/R8/mw
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