3.6.3 Option Tests
If good communications are established, option commands may be input by the operator through the CMFD OSSs
(Figure 3-8, Sheets 3 through 5). Thirty options are accessible. All appropriate RIUs will be tested except those with
bad communication and stations with store present. To initiate a test, depress and release the appropriate OSS adjacent
to the test number. The CMFDS sends a change request to the MMC and the MMC transmits the option command to the
appropriate RIU(s). If one status word is received by the MMC with the option command set, the MMC sends a change
command to the CMFDS and the CMFDS highlights the test number.
When the test is initiated on some option tests, 1s will be momentarily on the option line for each station; these will
change to 0s when the MMC gets a status word from the RIU indicating that the option has been commanded. If the
commanded option fails to set, a "1" will remain on the option line under the appropriate station.
By selecting each test number on the appropriate OSS, the operator can confirm that the options are set on the
appropriate RIU(s).
To switch to the next page of options, depress and release the OSS adjacent to the OPT mnemonic on the CMFD and
options 11-20 will be displayed. To switch to the last page, again depress and release the OSS adjacent to the OPT
mnemonic and options 21-30 will be displayed.