Appendix a: signal connection arrangements – PLANET ISG-101 User Manual
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PLANET ISG-101
Internet Subscriber Gateway
Appendix A: Signal Connection Arrangements
RJ-45 Ethernet Port
The ISG-101 RJ-45 Ethernet port can connect to any networking device that use a standard
LAN interface, such as a Hub/Switch Hub or Router. Use unshielded twisted-pair (UTP) or
shield twisted-pair (STP) cable to connect the networking device to the RJ-45 Ethernet port.
Depending on the type of connection, 10Mbps or 100Mbps, use the following Ethernet cable,
as prescribed.
10Mbps: use EIA/TIA-568-100-Category 3,4 or 5 cable.
100Mbps: use EIA/TIA-568-100-Category 5 cable.
Notice: To prevent loss of signal, make sure that the length of any twisted-pair connection
does not exceed 100 meters.
The WAN Port:
PIN No.
RJ-45 Signal Assignment Designation
1
Output Transmit Data +
TD+
2
Output Transmit Data -
TD-
3
Input Transmit Data +
RD+
4 Unused
N/U
5 Unused
N/U
6
Input Transmit Data -
RD-
7 Unused
N/U
1 2 3 4 5 6 7 8
8 Unused
N/U
Table A-1 RJ-45 Uplink Connector
Check that the straight twisted-pair cable connection between the ISG-101 and the hub/router
conforms to the pin assignments show in the following diagram:
The LAN Port:
PIN No.
RJ-45 Signal Assignment
Designation
1
Input Transmit Data +
RD+
2
Input Transmit Data -
RD-
3
Output Transmit Data +
TD+
4 Unused
N/U
5 Unused
N/U
6
Output Transmit Data -
TD-
7 Unused
N/U
1 2 3 4 5 6 7 8
8 Unused
N/U
Table A-1 RJ-45 Uplink Connector
Check that the straight twisted-pair cable connection between the ISG-101 LAN port and the
WAN port conforms to the pin assignments show in the following diagram:
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