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crypt serial interface converter product photo

KIV Crypto Adapter for Sync to Async


Features / Benefits

  • CRYPTO Sync to Async Converter
  • Interface - RS-530 to RS-232, also capable of supporting other serial interfaces
  • Data Rates - 1200bps Sync to 2400bps Async
  • Serial Data Interface cards are Interchangeable
  • Supports 8-bit with no parity, or 7-bit with odd parity
  • Status LED’s for each Serial Port and Signal
  • 110/220VAC switch selectable or DC Power for -48VDC
  • UL, CSA and CE Approved, RoHS
  • Sturdy Aluminum Enclosure, Standalone or 1U Rackmount


The UDC-SA, KIV ADAPTER is an interface adapter designed to transmit one-way serial messages received from a CRYPTO synchronous RS-530 DCE, operating at 1200 bps, to an RS-232 asynchronous DTE at 2400 baud. The adapter is able to determine the beginning and end of a message by searching for selected patterns that frame a message. Because async data is character-oriented, and synchronous data is a continuous sequence of data bits, the device must also align incoming message characters with the outgoing async framing start and stop bits.

The incoming DCD interface signal controls whether any message data is passed. For a complete message to be transmitted the DCD signal must be asserted for the duration of the received message. If at any point the DCD signal drops, the outgoing transmit line will be put in an idle (mark) state.

Assuming DCD is asserted, the UDC-SA, KIV ADAPTER recognizes the start of a message as an occurrence of a triple ASCII pattern. When one of these selected patterns is recognized, the first of the three ASCII character is assembled in an async framed character (1 start bit, and one or more stop bits) and transmitted. With each subsequent 8 bits received, another async character is transmitted. This will continue until an end-of-message (ETX=03h) pattern is recognized in the byte-aligned received data stream. The ETX is transmitted as the last character in the message.

Because the synchronization at the start of a message is three consecutive ASCII characters, there will necessarily be a three-character buffer delay for all messages through the UDC-SA, KIV ADAPTER. To insure that the transmitted DCD is properly aligned with the end-of-message, DCD is also extended for three additional character periods.

User options include the ability to select which of the four available start of message character strings are enabled. Any combination of the four may be enabled through individual dipswitch settings. Another dipswitch selects whether the received data characters are 8-bit with no parity, or 7-bit with odd parity.

The UDC-SA is housed in a sturdy metal enclosure and operates on 110/220VAC.

The UDC-SA has a three year warranty and a 24 hour turnaround on warranty repairs.

KIV-Sync to async Adapter network diagram


Application Serial Interface adapter designed to transmit oneway serial messages received from a synchronous RS-530 DCE, operating at 1200 bps, to an RS-232 asynchronous DTE at 2400 baud
Capacity One DCE and one DTE
Serial Data Interface Primarily RS-530 and RS-232, also supports RS- 422/449 Data Format Synchronous and Asynchronous
Message Recognition Selectable via Dip Switch, triple ASCII pattern
Data Rates 1200bps Sync and 2400bps Async
Surge Protections Main power supply
Power Source AC Mains: 100-120 to 200-220VAC @10%, 50/60Hz, 0.16/0.08A, external 110/220 volt select switch, IEC Power Inlet, (2) 5mm Fuses DC Mains: DC Voltage, Input Range of -36 to -72vdc Current Draw at 48vdc: 75ma @ 3.6watts
Environmental Operating Temperature....32º to 122º F (0º to 50º C) Relative Humidity.............5 to 95% Non-Condensing Altitude............................0 to 10,000 feet

Height ....... 1.75 inches (4.44 cm)
Width ........ 9.00 inches (22.86 cm)
Length ...... 9.0 inches (22.86 cm)

**1U Rackmount is Available

Weight Standalone, 4 Pounds (1.814Kg)
1U Rackmount, 5 Pounds (2.267Kg)
Warranty Three Years, Return To Factory
Regulatory Approvals UL 60950-1:2010, CAN/CSA-C22.2 No. 60950- 1:2010, FCC Part 15, EN55022:2010, ICES-003, Class A
Ordering Information

Standalone Pt #: 190000, Model: UDC-SA_KIV Description: UDC-SA KIV Serial Adapter
1U Rackmount Pt #: 225000, Model: UDC-IC_KIV_ RM
Description: UDC-SA KIV_RM Serial Adapter
Optional DC Supply
Part Number: 184018
Model: UDC-DC -36 to -72 DC Power Supply
Serial Interface Cards, Two Cards Required Per UDC
129012 RS-422 DCE I/M 129011 RS-530 DCE I/M

Included with each unit:
  1. Operations Manual
  2. U.S.A. Grounded Power Cord, Part # 713015
  3. Optional Power Cords
    A) United Kingdom, Part # 713016
    B) Continental Europe, Part # 713017
    C) Other: Specify Country on Purchase Order
Optional Accessories
  1. Spare Data Center Fuses
    A) 160ma Fuse, Qty (2) Part # 714000
    B) 80ma Fuse, Qty (2) Part # 714001