Nortel DCT1900 Technical Product Manual page 125

The following resistance values for the twisted pairs are used:
26 AWG wire cable
24 AWG wire cable
22 AWG wire cable
Tables
Type
Twisted pair
Twisted pair
Twisted pair
Double twisted pair
(J–Y (St)Y 2 2 0.6)
Wire size Power Supply Voltage
( ∅ )
0 EPP
26 awg
24 awg
22 awg
* Cable lengths should never exceed the values given in Table 4–1, because of data limitations
Table 4–2 Maximum Cable Length when Powering via Data Pairs and Express Powering Pairs
Config-DCT1900/R8/mw
© 2000-2005
: .082
: .055
: .034
Cable
Capacitance
Wire size (∅)
AWG
26ga 15 pF/ft.
24ga 15 pF/ft.
22ga 40 pF/ft.
22ga 40 pF/ft.
Table 4–1 "Data Limited" Cable Length
Worst Case Power Consumption of Base Station =
Minimum Input Voltage of Base Station =
Maximum Cable Length (feet)
Power Supply Voltage
27.5 V
1 EPP 0 EPP
418 627
627 941
1026 1539 3448*
Technical Product Manual - DCT1900
Configuration Directions, Base Station Powering
/ft.
/ft.
/ft.
Maximum cable length
Superimposed noise
8 mV/pHz
CLU SLU
11/2 CLU-s
7540 ft. 4920 ft.
11480 ft. 6880 ft.
6880 ft. 4260 ft.
6160 ft. 3930 ft.
Based pm Class 3 =
Power Supply Voltage
42 V
1 EPP 0 EPP
1405 2107
2107 3161
5172* 4522*
Superimposed noise
10 mV/pHz
CLU SLU
11/2 CLU-s
6560 ft. 4260 ft.
9840 ft. 6230 ft.
5900 ft. 3930 ft.
4920 ft. 3280 ft.
7.5 W
23 dbm
21 V
48 V
1 EPP
1842 2763
2763 4145*
6782*
4-5