Black Box IC478A-M-R2 Async RS232 to RS485 Interface Converter, DB25 to DB25

Black Box IC478A-M-R2 Async RS232 to RS485 Interface Converter, DB25 to DB25
Model: IC478A-M-R2
Availability: Discontinued

***DISCONTINUED***  This product is discontinued. Contact Westward Sales to discuss an alternative option.

 

Black Box IC478A-M-R2

Convert async RS232 to RS485 at speeds up to 115.2 kbps with distances up to 4000 ft. over CATx cables with the IC478A-R2. Both the RS232 and the RS485 connectors are DB25 male. It has built-in silicon avalanche diode surge protection against data loss and equipment damage from transient surges. You can also "fine tune" impedance and "echo" characteristics for your individual application. For configuration, the converter has a DTE/DCE slide switch and an internal 8-position DIP switch.

Key features

  • Operates Asynchronously, Point-to-Point or Multipoint, over 2 or 4 Wires
  • Data Rates to 115.2 kbps
  • Selectable RTS-CTS Delay
  • Selectable High-Low Impedance
  • Carrier may be Continuous or "Controlled by RTS"
  • 50 drops in a multi-point environment
  • Built-In Surge Protection
Technology
CategorySerial Connectivity
ProtocolAsynchronous
Transmission DistanceBetween RS-232 device and converter: 50 ft. (15.2 m), but converters not directly attached will be underpowered; Between non-RS-232 device and converter: 9 mi. (14.4 km)
Serial Interface
CategorySerial to Serial
Serial PortsTransparent to 2-wire half-duplex or 4-wire full- or half-duplex
Baud RateTransparent to 115.2 kbps
Flow ControlTo devices: RS-232: Original pinning on DB25, DTE or DCE (user-selectable); To line: 2- or 4-wire RS-485
SignalsRaise DSR in response to DTR; raise CD in response to carrier; raise CTS in response to RTS (after no delay or 8-ms delay, user-selectable); carrier is either constantly on or controlled by RTS, user-selectable
Interfaces
User ControlsDTE/DCE slide switch and internal 8-position DIP switch for configuration
Power
Rated PowerFrom the RS-232 data and control signals
Surge ProtectionInternal Silicon Avalance Diodes dissipate surges up to 600 watts per wire within 1 ms
Mechanical
EnclosureABS plastic
Dimensions2.7"H x 2.1"W x 0.8"D (6.9 x 5.3 x 2 cm)
Ratings
Operating Temperature32 to 122° F (0 to 50° C)
Humidity5 to 95% noncondensing