Table of Contents
Advertisement
InfInite
409Q Hybrid
Key Telephone
System
SECTION
800
MAINTENANCE
AND TROUBLESHOOTING
800.1
PRINTED crRcuIT BOARD CPCB)
TROUBLESHOOTlNGCHAFtTS
Table 800-l
Central
Proceauihqj
Board
(CPB)
FUNCnON
CONTROL
OPTIONS
FAULT
OPTIONS
3PB
l.Central
Processor
Contains 8 process
Switch 1 - Write
1 .Complete
system
3&r
Cc&: yellow
BOald CPBI tfY OoQ- nrnnlng
lldkAXS
Memory
fauure.
U-01 system opera-
(LEDs) which in&-
OFF _
2.Ermneous
call
tion.
cate vallous colxll-
tions of the system.
Protects contents of
processing.
2.Read only
da-.
Memory ROM) with
LED 1 - Depend-
3.Inoperattve
fea-
ON _
factory set Inslnx-
ability/Recovery
tures in system
tlons.
Allows update of
operation.
Flickers on/off
in
the database from
4.Partla.l failures In
3.Random
Access
normal operation.
St&on
100.
Memory (RAM)
system operation.
LED 2 - Ringing
Switch2-clearto
protected by a
Send
5.ConUnual
system
lithium
battery.
Will flash steady
P52hl-h.
4.Hard Restart
whenringscanb
OFF-
6.Fa.k-e
of SMDR
switch for manual
functioning.
For terminal
?.Loss of unique
system restart
LED3-Timers
equipped
to send
Wffl flicker when
cm
signal.
customer data-
5.Provides RS-232C
ON-
base programming.
port for SMDR and
Ers
are Operate
Is normal terminal
Terminal/Remote
'
Progxamming.
LED 4 - Monitor
operation.
Switch 3 - Trace
Mode.
IED5-LCD
ON-
Allows trace output
LED6-CailProc-
OFF-
essing
No trace output
' LED 7 - Adminlstra-
Swltch4-SoftRe-
start
tion
OFF-
No soft restart-
LED 8 - Idle.
ON-
Allows soft restart
If the system stops
Switch 5 - SMDR
processing and LED OFF -
1 only 1s on. this in- Disabled.
dkates a ROM
ON-
failure.
Enabled.
If the system halts
andLEDSland2
are on, this indl-
cates a RAM failure.
Advertisement
Table of Contents
