DI-2
RS-232/RS-485 interface converter
TDB109010en/05.2013
DI-2
RS-232/RS-485 interface converter
Product description
The DI-2 converter is designed for the connection of personal computers and workstations
utilising an RS-232 interface with Bender devices utilising an RS-485 interface. The hardware
and software of the computers need not to be changed. A typical application is the connection of a personal computer to a BMS network.
Application
• Conversion of RS-232 signals into RS-485 signals
• Parameterisation of alarm indicator and operator panels (MK800, MK2430) with RS-485
interface via PC with RS-232 interface using software
Interface converter DI-2USB
Device features
• Plastic enclosure for DIN rail mounting
• Electrical separation between the input
and output circuit
• Supply voltage DC 10…30 V
2
TDB109010en/05.2013 Function
Many PCs and work stations are equipped with serial RS-232 interfaces. The interface
converter DI-2 is designed to connect these devices via an RS-232 interface to the BMS
bus using the RS-485 standard. The connected devices are protected against spikes by
galvanic separation between the input and output circuit. Additional internal measures
protect the device against voltage spikes.
Approvals
Wiring diagram (example)
Technical data
Insulation coordination acc. to IEC 60664-1
BMS-Bus
Rated voltage
Rated impulse voltage/pollution degree
3 kV/3
Supply voltage
Supply voltage US
Power consumption
see ordering information
≤ 2.2 W
Interfaces
DI-2 for the integration of a personal computer utilising an RS-232
interface into a BMS network.
Note:
Terminate both ends of the BMS bus with 120 Ω resistors (R)
Dimension diagram
Dimensions in mm
BMS
Interface/protocol
1 x RS-485/–
Baud rate
9.6…115.2 kbit/s
Cable length ≤ 1200 m
Cable (twisted in pairs, one end of shield connected to PE)
recommended: J-Y(St)Y min. 2 x 0.8
Mode–
Connection
DATA + (A), DATA - (B)
Terminating resistor 120 Ω (0.25 W)
Device address, BMS bus
–
Serial interface
1 x RS-232
Alarm LEDs
ON
Environment/EMC
EMC immunity/EMC emission
EN 61000-6-2/EN 61000-6-4
Classification of climatic conditions acc. to IEC 60721
Stationary use
3K5
Transport2K3
Long-time storage 1K4
Ambient temperature, operation -10…+55 °C
Classification of mechanical conditions acc. to IEC 60721
Stationary use
3M4
Transport2M2
Long-time storage 1M3
Connection
Connection
Connection rigid/flexible/conductor sizes
screw-type terminals
0.5…2.5 mm² (AWG 22…12 )
Other
Operating mode
Mounting
Degree of protection, internal components (IEC 60529)
Degree of protection, terminals (IEC 60529)
Screw mounting
DIN rail mounting acc. to
Operating manual
Weight continuous operation
any position
IP30
IP30
2 x M3
IEC 60715
TBP109010
≤ 160 g
TDB109010en/05.20133
Subject to change! – TDB109010en / 05.2013 / Schw / © Bender GmbH & Co. KG, Germany
Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Grünberg • Germany
Londorfer Straße 65 • 35305 Grünberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-Mail: info@bender-de.com • www.bender-de.com
BENDER Group
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