Data set
must
be attached
for
routines COM20 through
COM25. These routines test the communications
network. The status
is
displayed
on
the bottom line.
COM20 through COM25 routines
are
used in MOl 894
only.
Routine
Number
Description
COM20 Transmits solid mark.
COM21 Transmits solid space.
COM22 Transmits 300 bps alternating bit pattern.
COM23 Transmits 134.5 bps alternating bit pattern.
Comments
Causes line disconnect
if
either' the transmitting
or
receiving data set is strapped
for
a long space
disconnect.
COM24 Receives and analyzes 134.5 bps alternating bit Results
of
the analysis are displayed in a graph
with
pattern. decimal numbers.
COM25 Receives and analyzes 300 bps alternating bit
pattern.
Results
of
the analysis are displayed in a graph
with
decimal numbers.
Routine
Returned
Information
Number
Description
Status
Data (hex)
Meaning
Routines 51001 through 51015 test the Serial
I/O
Adapter feature. Neither the
I/O
device nor the wrap connector
needs to
be
attached
for
routine 51001 through 51006
51001 Returns serial
I/O
adapter status. XX One
byte
of
sense status.
51002 Tests
for
timer interrupt
in
transmit
96
Good test.
mode.
51003 Tests
FFFF
timer interrupt rate
96
21
CA through Good test.
constant. 21E8
Data is the rate in tens
of
p.s.
00
2710 No interrupt occurred.
51004 Tests
AAAA
timer interrupt rate
96
1681
through Good test.
constant 169F
Data is the rate
in
tens
of
p.s.
00
2710 No interrupt occurred.
51005 Tests 5555 timer interrupt rate
96
DB
38 through Good test.
constant.
OB56
Data is the rate in tens
of
p.s.
00
2710 No interrupt occurred.
51006 Tests 004F timer interrupt
96 0009 Good test.
Data is the rate
in
tens
of
p.s.
00 2710 No interrupt occurred.
3-58
."
..
/
r'
.j.
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