9
MODULAR SMART SWITCH
2. Introduction
The Modular Smart Switch is suitable for a wide variety of applications,
including printer and plotter sharing, file transfer, modem sharing, network
switching, electronic point-of-sale systems, access control networks, machine
tool control, data collection, and mainframe connections.
2.1 Features
• Modular and user-upgradeable construction.
• Mixed serial (RS-232/422) and parallel ports in any combination.
• Up to 12 ports and 4 MB of buffer memory.
• Automatic printer and plotter sharing.
• Any port can be routed to any other port.
• File transfer between computers using standard file-transfer software.
• Memory-resident control software for selecting destination ports.
• Multiple copies of printouts.
• Unwanted print data can be cleared from the switch’s buffer.
• Software for high-speed serial data output from PCs.
• Full-duplex serial data communications.
2.2 Product Information
The following items are available:
• Modular Smart Switch Chassis w/ 1 Meg Memory (SW925A, SW925AE)
includes:
Main chassis with 6 dual-port module slots and 2 memory slots
Software disk in 3.5" format
Power lead with 115 VAC or 230 VAC plug
5 module blanking plates with fixing screws
This user manual
8
MODULAR SMART SWITCH
1. Specifications
Base Chassis (SW925A/SW925AE)—
6 dual-port module slots, 2 memory
module slots, integral power supply
Ports
—
Parallel:
Dual parallel-port module slots with DB25 female connectors.
Automatic in/out detection or selectable by option switches. 30,000 cps.
Serial:
Dual serial-port modules contain 2 bidirectional RS-232/422
interfaces with DB25 male connectors.
Switches
—Control protocol and RS-232/422 selection and baud rates.
Baud Rates
—300, 1200, 2400, 4800, 9600, 19200, 38400, and 57600 bps
Handshake
—CTS/DTR hardware XON/XOFF, ETX/ATK.
Functional Features
—Code-string control; data broadcast to multiple ports;
print to first available printer; file transfer compatible with Laplink,
Fastlynx, Kermit, Xmodem, etc.
Timeout
—Selectable from 1 to 255 seconds
Indicators
—LEDs: Buffer status, individual channel activity, power
Power
—115 or 230 VAC, 60/50 Hz
Size
—3.5"H x 13.1"W x 9.4"D (9 x 33.5 x 24 cm)
Weight
—7.7 lb. (3.5 kg)