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IP LDK-20 Installation Manual Board Installation
24
S Mode
CONNECTOR PIN NUMBER NO SIGNAL NAME FUNCTION
1,2,7,8 Reserved
3 RX+ Receive Data
4 TX+ Transmit Data
5 TX- Transmit Data
RJ45
6 RX- Receive Data
Figure 3.2.1.1b S Mode(Basic BRI Line Connector and Terminating Resistors)
SW5 and SW6 : 1,2 Pin Setting(The Default = All On Position)
TERMINATING RESISTORS
LINE NO RJ45 TYPE JACK
SWITCH PIN1, 2 ON PIN1, 2 OFF
REMARK
Line 1 MJ1 SW5 Termination Open
Line 2 MJ1 SW6 Termination Open
T or S Switch Setting of Basic BRI
SWITCH AND CONNECTOR
LINE
NO
MODE
SW5
PIN 3, 4
SW7 CN21
REMARK
S ON ON
Line 1
T OFF OFF
Default
Line 2 T Only
※ NOTE
- SW5(PIN3, 4) : -40V POWER FEEDING. P
- SW7: THE MODE CHANGE OF THE BRI TRANSCEIVER.
TE1
(
or TA
)
3
6
4
5
TX+
TX
-
RX+
RX
-
BRI Port1 Onl
y
RX+
RX
-
TX+
TX
-
3
6
4
S
interface
R
R
ISDN terminal
SW7
1 2
ON
ON : S mode
SW5
1 2
3 4
ON
T
S
CN21
5
RJ45 type jack
Max. 1000 meters
T
S
T
S