Data Sheet for Product

Ordering Information
For Modbus TCP Client/Modbus RTU over
Ethernet (Figure 2), be sure to order hardware
supporting Ethernet ALNs.
RS-485 ALN (Ethernet not supported)
Description Product Number
Modbus 250 Driver, Open Processor
with RS-485 ALN
986-90399A
Modbus 250 Driver, MEC with RS-485
ALN, 8DI, 8DO, 8AI, 8AO, Point
Expansion Support, HOA-ready
986-90399C
Modbus 250 Driver, MEC with RS-485
ALN, 8DI, 8DO, 8AI, 8AO, Point
Expansion Support, with HOA
986-90399D
Modbus 250 Driver, MEC with
RS-485 ALN, 8DI, 8DO, 8AI, 8AO,
Point Expansion Support, Modem,
HOA-ready
986-90399E
Modbus 250 Driver, MEC with RS-485
ALN, 8DI, 8DO, 8AI, 8AO, Point
Expansion Support, Modem, with HOA
986-90399F
Ethernet ALN
Description Product Number
Modbus 250 Driver, Open Processor
with Ethernet ALN
986-90399B
Modbus 250 Driver, MEC with Ethernet
ALN, 8DI, 8DO, 8AI, 8AO, Point
Expansion Support, HOA-ready
986-90399G
Modbus 250 Driver, MEC with Ethernet
ALN, 8DI, 8DO, 8AI, 8AO, Point
Expansion Support, with HOA
986-90399H
Modbus 250 Driver, MEC with
BACnet/IPALN,8DI,8DO,8AI,8AO,
Point Expansion Support, HOA-ready
986-90399L
Modbus 250 Driver, MEC with
BACnet/IPALN,8DI,8DO,8AI,8AO,
Point Expansion Support, with HOA
986-90399M
Modbus 250 Driver, Open Processor
with BACnet/IP ALN
986-90399N
For more information, visit www.sbt.siemens.com.
Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as design
improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners.
© 2006 Siemens Building Technologies, Inc.
Siemens Building Technologies, Inc. Document No. 127-1516
1000 Deerfield Parkway Country of Origin: US
Buffalo Grove, IL 60089-4513 Page 4 of 4
U.S.A.