TriPoint VertexRSI 7200, Руководство по эксплуатации и обслуживанию

Страница: 32 / 266

O V ERVIE W
2 - 1 7
System fau l t status i s reported i n i nverse, doub l e-h i gh, doub l e-w i de characters i n the
f i e l d be l o w the T r ack i ng mod e status li ne. In the event of mu l t i p l e fau l t cond i t i ons,
the fau l t messages are scro ll ed cont i nuous l y at approx i mate l y one-second i nterva l s.
A n aud i b l e a l arm ( i f the a l arm opt i on i s turned on) accompan i es any ma j or fau l t and
may be s il enced from the front pane l keypad (refer to paragraph 5.8.6.1 1, for
i nformat i on on user i nterface opt i ons).
The l o w er port i on of the d i sp l ay a ll o w s fu ll y menu-dr i ven se l ect i on of contro l modes,
parameter ed i t i ng, etc. A l og i ca l tree structure prov i des for easy and eff i c i ent system
operat i on w i th m i n i ma l re li ance upon system operat i on manua l s. One i tem i n each
menu i s a l w ays h i gh li ghted by an i nverse-v i deo cursor w h i ch i s contro ll ed by keypad
d i rect i on keys. The [ENTER] key then se l ects the h i gh li ghted i tem e i ther for mode
se l ect i on or ed i t funct i ons. A ded i cated [HELP] key and context-sens i t i ve he l p
messages serve to rem i nd the operator of operat i ona l procedures.
The d i sp l ay contro l PCB rece i ves commands from the CPU through a ser i a l li nk and
prov i des appropr i ate decod i ng and dr i ver funct i ons for ill um i nat i on of the d i sp l ay.
2.5.1.3 Th e K e yp a d
Commands from the keypad are decoded and ser i a li zed through a ded i cated keypad
contro l PCB and sent to the CPU through a ser i a l li nk shared w i th the d i sp l ay contro l
ser i a l li nk. A speaker l ocated on the keypad contro l c i rcu i t board prov i des an aud i b l e
a l arm for fau l t cond i t i ons. Refer to Tab l e 2-2 for exp l anat i ons of the funct i on of each
key.