Memotec CX900e, Hardware Reference Manual, Page: 103 / 200

9 DUAL ANALOG VOICE I/O CARD
3006M100-002
9-9
The default settings are 2-wire, 600 Ohm, Type 1, Normal signaling. Figure 9-9
shows the jumper bank locations for the default configuration.
NOTE: Do not remove LK19. It must remain in position at all times.
9.4.2 FXO
FXO line impedance is hardware configurable through jumper settings; see Table
9-1. As an example, Figure 9-10 demonstrates the jumper bank position for
configuring 600 Ohm impedance.
FXO SLIM LID
for Australia
Table 9-2 provides the FXO jumper settings for Australia. As an example, Figur
9-11 demonstrates the jumper bank position for configuring 600 Ohm impedance.
Figure 9-9 E&M 2/4-Wire Jumper Settings
R E V N O R V IV III II I
2W
4W
90 0 6 00 A U S A T T
I II III IV V
R e ve rse
s ig n a ling
s ign a ling
N o rm a l
typ e sig na lin g
Ω
Ω
90 0
60 0
AT & T
A u stra lia
C om p le x
2 -w ire
4 -w ire
R J -4 5
L K 1 9
Ju m p er B a n ks
Ju m p e r B a n ks
L in e Im p e da n ce
Table 9-1 FXO Jumper Settings for LK1
Location 600 Ohm 900Ohm
AT&T Com-
promise
LK1 connect A-B connect B-C connect C-D