Technical Reference for ZyXEL omni.net series
C-1
Appendix C
Phone Jack Pinout Assignments
The omni.net LCD/Plus/D features one RJ-45 phone jack, and in addition, the omni.net LCD/Plus
has two RJ-11 phone jacks.
!
The RJ-45 jack labeled "ISDN S' is used for ISDN line connection (S/T interface)
!
The RJ-11 jacks labeled "PHONE 1" and "Phone 2" (also known as an analog adapter or
POTS port in European countries) provide for an optional connection to analog telephone
equipment such as telephone set, answering machine, fax machine or analog modem.
RJ-45 Connector for the S/T Interface Model
RJ-45 Connector Pin Assignment
Pin
Description
1
Not Connected
2
Not Connected
3
RCV +
4
XMT +
5
XMT -
6
RCV -
7
-48V
8
-48V RTN
Table 80. RJ-45 Connector Pin Assignment
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
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45
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102
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108
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111
112
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114
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118
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120
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152
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