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 Only
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