Card Jumper/Switch Settings; Fxs 2W*8-6 Card Jumpers Settings - Zhone IMACS 8000 User Manual

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FXS Card Description

12.2.1.1 Card Jumper/Switch Settings

The FXS 2W*8-6 Card has two sets of jumpers on the motherboard. The jumper JP1
(US/EUR) has two settings. One set is for US domestic applications and the other is for
European applications. The default position is U.S.
JP2 (LL/SL) has two settings. One position should be set to SL (Short Loop) for loops not
exceeding 700 Ohms, and the other position should be set to LL (Long Loop) for loops
comprised between 700 and 1800 Ohms. The default position is LL.
Note: Tip to Ring voltage on short loop option is -33 volts, while the long loop option is -48
volts.
FXS
2W 8*6
P
1
12-2
Figure 12-1.FXS 2W*8-6 Card Jumpers Settings
FXS Card
JP1
US/Euro
Jumper
SL(Short Loop)
JP2
LL(Long Loop)
Model No.
Voice Cards