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DDAM-8520

Isolated RS-232/485/422 converter or repeater

DDAM-8520 is a industrial-grade Serial converter with bidirectional conversion between RS-232 to RS-485/422 and also a RS-485/422 repeater. Thus this

device can be used for bidirectional data conversion between serial signals like RS-232 to RS-485/422. It can also be used as a repeater for RS-485 and RS-422 transmission. It provides 1 RS-232 serial port and 2 RS-485/422 serial ports. The Serial port has a 1500W surge protection, 15kV electrostatic protection and 3kV photoelectric isolation protection, thus it effectively prevents device from being damaged due to surge or high voltages in noisy enviorenmets.


Datasheet(1)
Name Action
DDAM-8520 ds
  • Features
  • Specifications
  • Ordering info
  • Bidirectional data conversion between RS-232 serial port and RS-485/422 serial port
  • Support RS-485/422 repeater function, combine repeater function And bidirectional data conversion
  • Selects communication parameters automatically, communication distance is up to 3000m (9600bps)
  • Serial port provides 1500W surge protection and 15kV electrostatic protection
  • Support 12~36VDC wide voltage input
Standards EIA RS-232C, RS-485, RS422 standard
RS-232 signal TX, RX, GND
RS-422 signal T+, T-, R+, R-, GND
RS-485 signal D+, D-, GND
Working mode Asynchronism, point to point or multi point, 2 wire half-duplex,4 wire full duplex
Baud rate 300~115200bps, auto test serial signal rate detect signal speed automatically, zero delay time
Flow control Data direction auto-turnaround, no flow control is required
Transfer distance RS-485/422 side:3Km(9600bps)
RS-232 side no less than 5m
Max number of drops 128 nodes
Optical isolation 3000V
Port protect 1500W surge protection,15KV ESD protection
Connector RS-232 side DB9 female
RS-485/422 side 5 bit terminal block
Isolation mode adopt +12V~36VDC input power, provide 3000V isolation
Environment Operating temperature                  -10°C to 60°C
Storage  temperature                    -40°C to 85°C
Humidity                                        5% to 95%(no condensation)
Appearance Dimensions                                    100.0mm×69.0mm×22.0mm
Material                                         Iron(shell)
Color                                             White
Weight                                           200g
Warranty 3 years
Storage temperature -40°C to 85°C
Humidity 5% to 95%(no condensation)
Material Iron(shell)
Color White
Weight 200g
Approvals FCC, CE, RoHS approvals
Available Models
Model No. Description
DDAM-8520 Isolated RS-232 to RS485/422 converter or Repeater.
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