Nortel Networks 1000 - Manual (Page 338)

338 NT5D97 Dual-port DTI2 PRI2 card
Table 130
Impedance level and loop mode switch settings
Swit
ch
Description S9/S15 Switch Setting
1 Impedance level OFF - 120 ohm
ON - 75 ohm
2 Spare X
3 Spare X
4 Unit mode OFF - Loop operates in the DTI2 mode
ON - Loop operates in the PRI2 mode
Transmission mode
A per-trunk switch (S4/S10) provides selection of the digital trunk interface
type. Refer to
Table 131 "Impedance level and loop mode switch settings"
(page 338) .
Table 131
Impedance level and loop mode switch settings
Description S4/S10 switch settings
E1 OFF
Not used
Line build out
A per-trunk set of three switches (S5/S11, S6/S12 and S7/S13) provides
the dB value for the line build out. Refer to
Table 132 "Trunk interface line
build out switch settings" (page 338) .
Note: Do not change this setup.
Table 132
Trunk interface line build out switch settings
Switch setting
Description S5/S11 S6/S12 S7/S13
0dB OFF OFF OFF
Receiver impedance
A per-trunk set of four DIP switches (S8/S14 provides selection between
75 or 120 ohm values. Refer to
Table 133 "Trunk interface impedance
switch settings" (page 339) .
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.