User Manual

3
Siemens
CB1Q3932en
Building Technologies 2017-06-12
Technical data
General Data
Dimensions (w x h x d) 45 x 110 x 75 mm
Materials and Colors ● Base: Plastic, pigeon-blue RAL 5014
● Housing: Plastic, light-grey RAL 7035
Weight excl. packaging 98g
Power supply
Power supply Via Climatix 6XX bus connector
DC 5 V (+5% / –5%), max. 270 mA
Interface
BACnet MS/TP RS-485 (EIA-485) 1 interface on terminal T1
Bus connection and terminal A+, B-, REF
Bus electronic Galvanically isolated
Bus cable Shielded twisted pair (like AWG 24)
Bus termination* Switchable by software (120 Ω + 1 nF)
with bus polarization
Bus polarization Switchable by software (680 Ω) with
bus termination
Baud rate 9600, 19200, 38400, 76800, 115200
Connected devices Max. 31
NOTICE! It is essential to use a network termination on each end of the RS485 line, which matches the cable
impedance to prevent signal reflections and corrupting the data on RS485 network.
Terminal, wiring, cables and interface
Connection terminal Equipped with plug: Phoenix FKCT 2,5 /3-ST
For other types of plug (optional), refer to:
Climatix range document CB1Q3900en
Wiring Solid wire: 0.5…2.5 mm²
Stranded wire (twisted or with ferrule): 0.5…1.5 mm²
Cable types 3-wire twisted pair, shielded
COMM interface plug Equipped with board-to-board: ZEC1,0/10-LPV-3,5 GY35AUC2CI1
Ambient conditions and protection classification
Degree of protection of housing to
EN 60529
IP20
Climatic ambient conditions
Transport as per EN 607213-2 Class 2K3
Temperature: -40...70 °C
Humidity: < 95 % r.h.
Atmospheric pressure: Min. 260 hPa, corresponding to
max. 10000 m above sea level
Operation as per EN 60721-3-3 Class 3K7
Temperature: -40...70 °C
Air humidity: < 90 % r.h.
Atmospheric pressure: Min. 700 hPa, corresponding to
max. 3000 m above sea level