The Modbus Interface Module
Installation & Commissioning Handbook, User Guide, AutroSafe Interactive Fire Alarm System, P-BSL330/IE,
Autronica Fire and Security AS
Page 8
2.2 Specifications
Ports
Two asynchronous ports, TX & RX signals only.
XON/XOFF selectable.
Interface Options
port 1 is RS232; port 2 is RS422/485.
RS-232
Receiver thr 1.5V typ. Receiver Rin 5k
Ω
typ.
TX o/p ±8V typ (3k load).
RS-422/485
Receiver threshold 200mV typ (differential). Receiver
Rin 12k
Ω
min. TX o/p 0 to + 5V (no DC load); + 2 to +
3V (120
Ω
ohm load).
Power supply
+ 7V to + 35V DC. + 12V DC Input power approx.
constant at 1-2 watts (startup current 300-600mA)
depending on model. At startup, the supply voltage
must reach 7V in <1 sec.
Isolation
64V PK, tested at >1000V AC RMS, 1 second.
Environmental
Operating temperature 0 to +50C. Storage temperature
-25C to + 70C. Relative humidity (operating and
storage) 0 to 90%, non-condensing.
Ventilation
Rail-mounted KD485 must have a 50mm gap above
and below.
EMC compliance
Emissions EN50081-2 (94), immunity EN50082-2 (95).
Dimensions
29mm (W) x 112mm (H) x 103mm (L) approximately in
rail-mounted position, including screw terminals.
2.3 Dimensions
The drawing below shows the dimensions of the BSL-330 module.
