Serial488/44-Channel IEEE 488/Serial Converter
Features• Controls up to four RS‑232 or RS‑422­devices from one IEEE 488 ­controller• Each serial port is individuallyprogrammable for baud rate, word
length, etc.
• Built‑in 64K data buffer dynamicallyallocates data storage• XON/XOFF or CTS/RTS handshaking
for each serial channel• Rugged rack‑mountable package withbuilt‑in power supply
Serial488/4 is a four-channel IEEE 488
to serial converter that enables an IEEE488 ­controller to command up to four­bidirectional RS‑232 or RS‑422 devices.

Computers with an IEEE interface can command up to four serial instruments and peripherals
with one Serial488/4

Serial488/4 System Example

The unit attaches to an IEEE 488 controller
in the same manner as an IEEE instrument,
and allows the IEEE 488 controller to com‑municate with serial printers, plotters, andinstruments or with other computers. The
unit allows the IEEE 488 controller to accesseach of the serial ports individually by using
a secondary IEEE address for each channel,
or by using dual‑primary addressing.
Each of the serial ports is individually con‑figurable for RS‑232 or RS‑422 operation.
Serial port parameters such as baud rate,
word length, stop bits, and parity are also
individually programmable per channel.
All parameters are programmable from theIEEE controller and are stored in nonvola‑tile memory. The IEEE controller can readthe status of each channel at any timeand determine the number of characters
received on the serial port, as well as thestatus of error conditions for that channel.
The Serial488/4 is a 64K RAM dynamicallyallocated for use as a data buffer for all
the serial ports. Handshaking on the se‑rial ports, either XON/XOFF or CTS/RTS,
automatically inhibits serial devices fromsending more characters when the data
buffer is nearly full.
The Serial488/4 is packaged in a rugged
rack mountable case with an internal power
supply. Serial port connections are madevia four 9-pin sub‑D style connectors.

Measurement Computing

Up to 13 additional
IEEE devices
SCSI488/S

DAC488HR/2

Filter488

Serial488/4

IEEE

Serial488/4

IEEE 488 controller
230 PROGAMMABLE VOLTAGE

230 PROGAMMABLE VOLTAGE

230 PROGAMMABLE VOLTAGE

230 PROGAMMABLE VOLTAGE

Up to four RS-232 or RS-422 devices

Specifications

Programmable Parameters: IEEE Terminators, Serial
Terminators, EOI, SRQ Mask, Data Channel, BaudRate, Word Length, Parity, Stop Bits, Serial Control

Serial Interface
EIA RS‑232C: AB, BA, BB, CA, CB
EIA RS‑422: Balanced voltage
Character Set: Asynchronous bit serial
Duplex: Full
Word Length: 7 or 8 data bits
Stop Bits: 1 or 2Parity: Odd, even, mark, space, or disabled
Baud Rates: 110, 300, 600, 1200, 1800, 2400, 3600,4800, 7200, 9600, 19200, and 16 x external clock input
Terminator: CR, LF, CR‑LF, or LF‑CR.
Control:  Supports Clear To Send (CTS), Request To
Send (RTS), or XON/XOFF
Serial I/O Buffers: 64,000 characters
Output Voltage:  ±5V min (RS‑232C) 5V typ (RS‑422A)
Input Voltage: ±3.0V min; ±15V maxConnector: Four 9‑pin Sub‑D male mating ­connectors
supplied

IEEE 488 Interface
Implementation:  SH1, AH1, T6, TE1, L4, LE1, SR1,PP0, RL0, DC1, C0, E1
Terminator: Software selectable CR, LF, CR‑LF, LF‑CR
with EOI
Connector: Standard IEEE 488 connector; metric studs(508) 946-5100

1GeneralIndicators: LEDs for Talk, Listen, SRQ, Error, Power,and Send and Receive for each channel
Power: 105 to 125 VAC, 60 Hz; or 210 to 250 VAC,50 Hz; 15 VA max
Environment: 0 to 35 ˚C; 0 to 95% RH, non‑condensing
Controls: Power Switch (rear panel)
External DIP switches select Dual Primary or Second‑ary address mode and IEEE Address
Dimensions: 425 mm W x 203 mm D x 45 mm H
(16.75” x 8” x 1.75”); rack-mount kit included
Weight: 4.5 kg (10 lbs)

Ordering Information
Description
4-channel IEEE 488 to serial converter
including rack‑mount kit
Shielded IEEE 488 cable, 6 ft.

info@mccdaq.com

Part No.

Serial488/4
CA‑7‑3mccdaq.com