AIR
-485
®
Page 8 of 14
Installation Manual
November 2014 • Rev. 2.2
Figure 2: Back
Back:
1) RS-485 Input
– Used for RS-485 communication up- and down-stream. If the
Air
-485
®
modem is connected to a PC using USB, this connection cannot be used.
2) Network ID
– This is used to set the network ID for the group of
Air
-485
®
modems
communicating together. The Master and corresponding Slaves should all be on the
same Network ID. Setting the Network ID can be done using the DIP switches, as shown
in the diagram below:
3) Signal Strength
– Signal Strength LEDs indicate the strength of the received signal only
when DIP switch 7 on the front side of the
Air
-485
®
modem is UP (Figure 1). The rule of
thumb is that more LEDs are better. However, as long as you have at least one LED
and it is on SOLID, there is a solid data connection. In NORMAL mode, the lower LED
will be on SOLID and indicates that the unit is powered on.
