- 38 -
Twisted Pair
Number
Pin Number
Signal
Description
To
Pin
Number
Signal
Description
1
1
2
TD+
TD-
à
1
2
TD+
TD-
2
3
6
RD+
RD-
à
3
6
RD+
RD-
RJ-45 Connector Pin Assignments
Figure A-1 shows the RJ-45 Connector pin assignments
5-3. Connecting 100Base-TX Fast Ethernet Network
The system board provides an RJ-45 port for connection to 100Base-TX Fast Ethernet or 10Base-T Ethernet Network
with a single connection over unshielded twisted-pair (UTP). The adapter automatically operates at 10Mbps or
100Mbps when the appropriate 10/100Base hub be connected.
To connect the adapter to 100Base-TX Fast Ethernet Network, you need a twisted-pair Category 5 cable with RJ-45
modular jacks at both ends. This cable can have a maximum length of 300 feet (100 meters).
5-4. Connecting 10Base-T Ethernet Network
To connect the adapter to a 10Base-T Ethernet Network, you need a twisted-pair Category 3, 4 or 5 cables with RJ-45
modular jacks at both ends. This cable can have a maximum length of 300 feet (100 meters).
5-5. 10MBase/100MBase Installation Notice
- 100Mbps network must be shielded twisted-pair (STP) or Category 5 unshielded twisted-pair cable. Do not use a
Category 3 or 4 cable for 100Mbps-network operation, it could cause data loss. Category 3 or 4 cable is good for
