Operator`s manual

B-1
APPENDIX B. PROM SIGNATURES AND SOFTWARE OPTIONS
The 21X PROM signatures are viewed by entering the *B Mode and advancing to the appropriate
window (Section 2.4.3.). The 21X uses three PROMs. The third PROM determines the PROM option.
The current PROM signatures are given in Table B-1.
TABLE B-1. 21X PROM SIGNATURES
OPTION SIGNATURE PROM VERSION REVISION
-- 02:14441.
-- 03:14436.
or
03:5872.0*
OSX-0.1 04:50721. 08:.10000 09:0005
OSX-1.1 04:866.00 08:1.1000 09:0004
OSX-2.1 04:44109. 08:2.1000 09:0005
* With this PROM and a hardware modification the slow integration time is 20 ms (one 50 Hz cycle).
This option is available for countries where 50 Hz Ac power is used.
When purchasing a new 21X, the user may select 1 of 3 combinations of software. If no option is
specified, the default (OSX0) will be shipped. The differences between the options are listed in the
following table. If an instruction or feature described in this manual is not listed in the table, it is in all
PROM options.
DIFFERENCES BETWEEN PROM OPTIONS
SOFTWARE VERSION
OSX-0 OSX-1 OSX-2
(default)
Instructions
23 BURST MEASUREMENT * *
60 FFT *
62 COVARIANCE/CORRELATION *
97 INITIATE TELECOMMUNICATIONS *
98 SEND CHARACTER *
101-104 SDM INSTRUCTIONS * *
81 RAINFLOW HISTOGRAM *
Modes
*C MODE - SECURITY *
Telecommunications Commands
L -- SECURITY DISABLE/ENABLE *