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Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en
HVAC Products KNX (Konnex) and Synco 30.08.2007
1.2.1 Collective terms for the device types
In this document, the devices on in the table on the previous page may be referred
to collectively as follows.
The term "Synco 700 type RM… controllers", or "RM… controllers" for short, refers
collectively to the following types:
• Universal controllers RMU710, RMU720, RMU730
RMU710B, RMU720B, RMU730B
• Heating controllers RMH760, RMH760B
• Boiler sequence controllers RMK770
• Central control units RMB795
• Switching and monitoring device RMS705
The term "RXB/RXL room controllers" or "RX… room controllers" refers collectively
to the following types:
• Room controllers RXB21.1, RXB22.1
• Room controllers RXL21.1, RXL22.1
The term "OZW77x central communication units" refers collectively to the following
types:
• Central communication units OZW771.xx (where xx = 4, 10 or 64)
• Central communication unit OZW775
The term "Synco bus devices" refers collectively to the following types:
• Synco 700 controllers RM…
• Room controllers RX…
• Room unit QAW740
• Bus operator unit RMZ792
• Central communication units OZW77x
• Synco 900 central apartment unit QAX910
"Bus devices" include the Synco bus devices (see above) and devices from third-
party manufacturers. Bus units use a KNX network address.
1.2.2 Product markings on Synco bus devices
The Synco bus devices are labeled with product markings with the following
meanings:
KNX logo Devices with this logo are certified by Konnex
KNX transmission medium TP1 stands for Twisted Pair 1 (1 pair of twisted wires)
KNX configuration mode EE stands for Easy (mode), Logical Tag Extended
Synco 700 type
RM…controllers
RXB/RXL room controllers
OZW77x central
communication units
Synco bus devices
Bus devices
TP1
EE