REMOTE PROGRAMMING
All front panel functions can
be
remotely programmed except the Power onloff, Sample Rate, Clear
Display, and test functions greater than 01. All the inputs are activated by
a
ground contact closure, or
a
"0" level TTL signal (0
=
true). The input load is equal to one low power shottky TTL load, plus a 10
KL!
pullup to
+5
volts.
CONTROL
LlNE FUNCTIONS
REMOTE ENABLE
-
A low level on this line transfers counter control from the front panel keyboard to
the rear panel remote programming connector.
INPUT DATA
-
A low level on this line initiates
a
data read cycle to read the function/program data con-
tained on the
22
data input lines. If this line is held low the counter will continuously poll the input data.
DATA ACCEPTED
-
This signal is output from the counter to the controller. The line goes high when data
is being read by the counter, and goes low upon completion of
a
data read cycle.
PROGRAM DATA
-
A low level on this line indicates that the
22
data lines will be interpreted
as
program
data. A high level on this line indicates that these lines will be interpreted
as
function data.
DATA
LlNE FUNCTIONS
RESET COUNTER
-
A low level on this line will reset the counter and initiate
a
new search for
a
valid
signal.
UPDATE READING
-
A low level on this line will cause the counter to take
a
new reading, update the
front panel display, and update the BCD output.
BAND SELECT (3 lines)
-
These lines select the band, or Test 01, in accordance with the following:
BAND
Test 01
Band 1
Band 2
Band 3
Band 4.1
"
Band 4.2"
Band 4.3"
Band 4.4"
"In counters that do not have Option
6,
the C bit does not apply.
07-2
Scans by ArtekMedia © 2007
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