7
CHAPTER 1: Specifications
Compliance —
FCC Class A, DOC Class/MDC classe A
Interface —
EIA RS-232 serial; each port either DTE or DCE
(user-selectable)
Protocol —
Asynchronous
Data Format —
Either 7 data bits with odd or even parity or 8 data
bits with no parity (user-selectable); always 1 stop bit
Flow Control —
Hardware (DTR/CTS), passed through (see
pages 21 and 23)
Data Rates —
115,200, 57,600, 38,400, 19,200, 9600, 2400, 1200,
and 600 bps (user-selectable)
Maximum
Distances —
50 ft. (15.2 m) to each connected device
User Controls —
(2) Front-mounted: (1) Slide switch for switching
mode (text, graphics, or transparent); (1) Reset
pushbutton;
(6) or (10) Internal: (2) 8-position DIP switches for
arming code and communication parameters;
(5) or (9) DTE/DCE slide switches: (1) for the
common port, (1) for each switched port
Diagnostic —
Automatic power-up self-test and user-selectable
power-up barber-pole test
Indicators —
(2) Front-mounted LEDs: (1) POWER, (1) [Operating]
MODE (only lit during Transparent mode);
(1) Front-mounted 7-segment PORT LED display
1. Specifications
Summary of Contents for High Speed COS-4
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