AH500 Hardware and Operation Manual
4-84
Example: If the node address of AHRTU-PFBS-5A is 26 (decimal value), users have to turn the knob
corresponding to x16
1
to position 1, and turn the knob corresponding to x16
0
to position A.
26 (decimal value)＝1A (hexadecimal value)=1×16
1
＋A×16
0
Points for attention:
If users set the node address of AHRTU-PFBS-5A when AHRTU-PFBS-5A is not supplied with power,
they have to power AHRTU-PFBS-5A after the node address of AHRTU-PFBS-5A is set.
If users change the node address of AHRTU-PFBS-5A when AHRTU-PFBS-5A is powered, the change
will not take effect immediately after the node address of AHRTU-PFBS-5A is changed, and it will take
effect after the users cut off the power supplied to AHRTU-PFBS-5A and then power AHRTU-PFBS-5A
again.
To prevent the address knobs on AHRTU-PFBS-5A from being scratched, please carefully use a slotted
screwdriver to rotate the address knobs on AHRTU-PFBS-5A.
4.12.3 Wiring AHRTU0-ETHN-5A
4.12.3.1 Connecting the Ethernet
Connect the network cable CAT 5e to the RJ-45 port X1 or X2 of the AHRTU-ETHN-5A. After the CAT 5e is
connected to the RJ-45 port of the AHRTU-ETHN-5A, the corresponding lights of RJ-45 port X1 or X2 will be
ON. When the linear topology is employed, users can use the RJ-45 port X1 or X2 for establishing
connections to other devices and no Ethernet switch is needed.
Note: when using port X1 or X2 to make a connection, do not create a loop; otherwise the communication
between devices will fail.
4.12.3.2 Ethernet
Ethernet port
Pin Definition Description
RJ-45
1 TX+
Transmitting data
(positive pole)
2 TX-
Transmitting data
(negative pole)
3 RX+
Receiving data
(positive pole)
4 - -
5 - -
6 RX-
(negative pole)
7 - -
8 - -
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