AERCO XPC GATEWAY Communications - Manual (Page 84)

GATEWAY COMMUNICATIONS MANUAL
84
Wire specifications:
• A dedicated 22 AWG to 18 AWG twisted pair wire (EIA 485)
• 2000 feet (610 meters) for 76.8 kbps, or
• 3000 feet (914.4 meters) for 9600 bps, 19.2 kbps, or 38.4 kbps, before needing a Repeater.
• Devices should be daisy chained and not star wired.
• If the XPC is at either end of a network segment, connect a BT485 to the XPC
NOTE
USE THE SAME POLARITY THROUGHOUT THE NETWORK SEGMENT.
5. Turn on the XPC's power.
SECTION 13 LONWORKS
LonWorks is an open protocol that was originally developed by Echelon Corporation. It is now maintained
by Echelon in collaboration with members of the LonMark Interoperability Association. It requires the use
of Echelon’s Neuron microprocessor to encode and decode the LonWorks packets.
The LonWorks protocol is based on the concept of using standardized functional profiles to control similar
pieces of equipment. The AERCO XPC is a LonWorks compatible device, but is not a LonMark device. A
LonMark device has been thoroughly tested by Echelon (LonMark.org) and has been given the LonMark
logo indicating compliance with the LonWorks profile specification. All LonMark devices require the use of
proprietary hardware manufactured by Echelon Corp. In order to reduce the cost of adding that hardware
on every module, the data packets are formatted in the manner specified by the LonWorks
documentation and subsequently handed off to the LonWorks Option Card.
13.1 CONFIGURING THE AERCO XPC FOR LONTALK VIA SLTA-10
1. Turn off the XPC's power.
2. Using the rotary switches, set the translator's address. Set the Tens (10's) switch to the tens digit of
the address, and set the Ones (1's) switch to the ones digit.
EXAMPLE
: If the translator’s address is 01, point the arrow on the Tens (10's) switch to 0 and the
arrow on the Ones (1's) switch to 1.