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GDK-100
DIGITAL KEY TELEPHONE SYSTEM
104
Connection method between the ETIB and KD-ICM Box
KD-ICM Box can be only connected to ETIB. Wiring from electronic terminal interface board to KD-ICM Box
requires two pairs of wires.
Note: KD-Digital Phone Box operates regardless of line polarity, not with a fixed polarity
MDF
G
DK-
100 Dig
it
a
l In
te
rf
ace Bo
ard
RJ21 type connector
on the board
1
26
2
27
3
28
4
29
DT1
DR1
DT2
DR2
DT3
DR3
The soldering
side of
KD-Digital
Phone Box
GR
RD
Figure 3.5.4.4.a
wiring between the board and KD-Digital Phone Box
Note:
1.
A pair for voice signal can be connected regardless of the polarity of Tip and Ring. But the other
for signaling and data transmission should be connected with a fixed polarity as above figure.
2.
The GSX or GK Phone Box that can be connected to the LG Analog Key Telephone System,
should not be connected to the GDK-100 ETIB.
Figure 3.5.4.2.b
wiring between the board and KD-ICM Box
MDF
G
DK-
100 ET
IB
1
26
2
27
3
28
4
29
VT1
VR1
DT1
DR1
VT2
VR2
DT2
DR2
The soldering
side of
KD-ICM Box
GR
BK
YL RD
RJ21 type connector
on the board