Nortel 600 Series Manual page 158

3-22 Switch settings for balance networks
Table 3-O:
QNB65B Balance Network - switch settings for 24-gauge end-section non-loaded cable without
impedance compensator at far end of cable
Length
Ft X 1000 Meters
6-7 1829-2134
7-9 2134-2743
9-11 2743-3353
11-13 3353-3962
13-15 3962-4572
15-17 4572-5182
17-19 5182-5791
19-21 5791-6401
21-23 6401-7010
23-25 7010-7620
25-27 7620-8230
27-28 8230-8534
Table 3-P:
QNB65B Balance Network - switch settings for 26-gauge end-section non-loaded cable without
impedance compensator at far end of cable
Length
Ft X 1000 Meters
6-7 1829-2134
7-9 2134-2743
9-11 2743-3353
11-13 3353-3962
13-15 3962-4572
15-17 4572-5182
17-19 5182-5791
19-21 5791-6401
21-23 6401-7010
23-25 7010-7620
NTP 297-3601-316
Note 2: See Figure 3-4 for information about how to set the R1 and R2
potentiometers.
Resistance
R1 R2
5.5 0
5.5 0
4 3
4 3
4 3
3.5 3
3.5 3
3.5 4.5
3.5 4
3.5 5
4 5
4 5
Note 1: Settings: 1 = ON, 0 = OFF
Note 2: See Figure 3-4 for information about how to set the R1 and R2
potentiometers.
Resistance
R1 R2
7 5
6 4.5
5.5 6
5 7
5 7
5 4
5 4
5 8
5 6
5 5
For Generic 602.20
Capacitance
Capacitance
Value (µF)
0.17
0.17
0.17
0.17
0.17
0.19
0.19
0.21
0.21
0.23
0.23
0.23
Capacitance
Capacitance
Value (µF)
0.15
0.15
0.15
0.15
0.15
0.17
0.17
0.19
0.19
0.19
08.01
SR Switches
1 2 3 4
0 1 0 0
0 1 0 0
0 1 0 0
0 1 0 0
0 1 0 0
0 0 1 0
0 0 1 0
0 1 1 0
0 1 1 0
0 0 0 1
0 0 0 1
0 0 0 1
SR Switches
1 2 3 4
1 0 0 0
1 0 0 0
1 0 0 0
1 0 0 0
1 0 0 0
0 1 0 0
0 1 0 0
0 0 1 0
0 0 1 0
0 0 1 0
August 2006
5
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0