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CHAPTER 1: Specifications
1. Specifications
Compliance:
FCC Part 15 Class A; IC Class/classe A
Protocols:
Subchannels: Asynchronous;
Composite: Synchronous with proprietary variant of HDLC
framing as defined in CCITT X.25 level 2
Clock Source:
Composite: External
Data Format:
Subchannels: 5, 6, 7, or 8 data bits; 1, 1.5, or 2 stop bits; even, odd,
or no parity;
Composite: HDLC frames
Flow Control:
Subchannels:
Hardware: DTR/CTS, end-to-end (DTE-to-DTE);
Software: X-ON/X-OFF, either end-to-end (DTE-to-DTE) or
subchannel-to-DTE (user-selectable); users can choose any
extended-ASCII characters from 11 hex (DC1) to 14 hex (DC4)
or 91 hex to 94 hex to be the X-ON and X-OFF characters
Operation:
Point-to-point
Data Rate:
Subchannels: 19,200, 14,400, 9600, 7200, 4800, 2400, 1200, 600, or
300 bps (user-selectable);
Composite: Up to 19,200 bps (depends on external clock rate)
Maximum Distance:
50 ft. (15.2 m) from the MiniStat-Four to any attached
device
User Controls:
(3) Internal jumpers: Normal/initialization, Pin 21 enable/disable,
and grounds connect/disconnect;
Menu-driven configuration program accessible from a PC or
terminal attached to any subchannel port; configuration can be
downloaded across the composite line from either MiniStat-Four
to the other
Diagnostics:
Local and remote subchannel and composite loopback
tests; when the composite line passes through a modem pair,
local analog and remote digital loopback tests
