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COURIER HIGH SPEED MODEMS
FRONT PANEL STATUS LIGHTS
HS
High Speed (above 2400 bps)
AA
Auto Answer
I
Answer
CD
Carrier Detect
OH
Off Hook
RD
Received Data
SD
Send Data
TR
Terminal Ready (DTR)
MR
Modem Ready /Test Mode
RS
Request to Send
cs
Clear to Send
SYN Synchronous Mode
ARQ Error control connection established
FLOW CONTROL BUFFERS
Transmit Buffer
Error control: 3.25k bytes
Non-Error control: 1.Sk bytes, 128-byte option
Receive Buffer: 2K bytes
COMMAND BUFFER
40 characters, exclusive of AT prefix, Carriage Return and spaces
TEST OPTIONS
Analog loopback with test pattern
Remote digital loopback
Digital loopback
Test pattern
Dial test
H-4
Technical Specifications
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