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Part# 5402


PCI 4-Port RS-232, RS-422, RS-485, RS-530, RS-530A, V.35 Synchronous Serial Interface (uses Z85230)

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The 5402 is a four-port PCI bus RS-232, RS-422, RS-485 synchronous serial interface. Designed using the popular Zilog Z85230 Enhanced Serial Communication Controller (ESCC), the board is an ideal solution for military, satellite, radar, banking, and other applications that require robust synchronous communications.

For maximum flexibility, each of the serial ports can be individually configured for RS-232, RS-422, or RS-485 communications. In RS-232 mode, all common modem control signals are implemented for compatibility with a wide range of peripherals. A digital phase lock loop (DPLL) is included on each port, and the board supports data rates up to 128K bps in burst mode. For easy implementation, a fan-out cable is included that terminates the onboard 100-pin SCSI-style connector to four DB-25M connectors. Terminal blocks, adapter cables other helpful accessories are available to facilitate rapid installation.

The 5402 features Universal Bus (3.3V and 5V) compatibility with both new and legacy computer systems. Software support, critical for successful synchronous communication development, is provided through Sealevel's SeaMAC synchronous serial driver. HDLC/SDLC protocols are supported as well as certain configurations of Monosync, Bi-sync and Raw modes.
Call for Price No
Host Interface(s) PCI
# of Ports 4
Electrical Interface RS-232, RS-422, RS-485, RS-530, RS-530A
V.35 Yes
RoHS Compliant Yes
Communications Controller Z85230
Serial Connector(s) DB25M
PC Bracket Standard Height
Communications Chip Z85230
Max Data Rate 128K bps (burst)
Max Data Distance 50 feet (RS-232), 4000 feet (RS-485)
Operating Temperature 0 - +70C
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
  • • Compliant with RoHS and WEEE directives
  • • Each port individually configurable for RS-232, RS-422, RS-485, RS-530, RS-530A, or V.35
  • • Z85230 Enhanced Serial Communications Controller (ESCC)
  • • Data rates to 128K bps (Burst mode)
  • • Included fan-out cable terminates 100-pin SCSI-style connector on board to four DB-25M connectors (Item# CA339)

Terminal Block
Terminal Block


DB25F to DB25M Twisted Pair Serial Cable
DB25F to DB25M Twisted Pair Serial Cable


RS-530 to RS-449 Cable
RS-530 to RS-449 Cable


Terminal Block Kit
Terminal Block Kit


DB25 to V.35 Cable
DB25 to V.35 Cable


RS-530 to X.21 Cable
RS-530 to X.21 Cable


DB25 Serial Cable
DB25 Serial Cable


Proudly Made in the USA
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