Rose Electronics Porter - Manual (Page 5)

Introduction
PORTER INSTALLATION AND OPERATIONS MANUAL
1
Introduction
This manual contains information for the installation and operation of the Porter, Rose
Electronics' name for its series of code activated switches. The Porter consists of a
switch unit and a separate wall mounted power adapter. You have chosen a versatile
microprocessor controlled switch that allows a computer to access serial devices such as
modems or instruments. The selection is through a code that is transmitted intermixed
with the normal data to the device. Since the Porter has buffer memory, each device may
simultaneously load data into the unit. The serial models allow different baud rates and
protocols to operate independently on each port with full duplex communications. All
equipment is connected by cables to the Porter's rear panel. The unit's external power
adapter connector and on/off switch are also n its rear panel. The Porter's front panel has
13 LEDs which display status information and switches which are used to manually
control the unit and run the unit's diagnostics.
Features

One computer to many peripherals

Compatible with any computer – PCs, Macs, minis

Compatible with all printers and plotters

Simultaneous inputs from all computers

Up to 256K buffer

Serial (RS232) or parallel (Centronics)

Models for either four or eight devices

Advanced features for trouble-free performance

LEDs show data activity and status

Self-text and diagnostic features

Made in USA
Model Number and Options
The Porter is available in several models, 4 or 8 channels, serial or parallel, and with a 16K
base buffer (Expandable to 256K). The model numbers are:
PO-4S – 4 port serial
PC-8S – 8 port serial
PO-4P – 4 port parallel
PO-8P – 8 port parallel
/B buffer options = 64K or 256K
Serial models have 2 options:
1- RS422 type ports
2- Max baud rate of 38400
(All standard baud rates are doubled
with this option)