NEC SV8500, Manual

Page: 2826 / 3438

VOL.3-339
CHAPTER 2 TERMINAL-RELATED DEVICES
Lamp Indications
The contents of lamp indications on this circuit card are shown in the table below.
Switch Settings
This circuit card has the following switches.
PA-PW54-B (DPWR) Lamp Indications Reference
LAMP NAME COLOR STATE
+80V ON Green Remains lit while +80 V input power is being supplied.
–48 V ON Green Remains lit while –48 V input power is being supplied.
RGU ON Green Remains lit while RGU output is in progress.
DC ON Green Remains lit while +5 V, +12 V, and –5 V are being output normally.
OPE Green Lights when information exchange with the CPU is possible.
CPUALM Red Lights when reset of the microprocessor has been activated.
DCALM Red Lights in the case of +5 V, +12 V, or –5 V outputs alarm.
RGUALM Red Lights in the case of RGU voltage alarm.
HOWALM Red Lights in the case of howler alarm.
SWITCH
NAME
SWITCH
No.
SETTING
STANDARD
SETTING
DESCRIPTION
–48V SW —
ON
×
–48V input power is supplied.
OFF –48V input power is not supplied.
RESET —
PUSH Hardware reset of the circuit card.
—
×
Normal setting
MB —
ON Make busy of the circuit card.
OFF
×
Normal setting
SW4
1
ON Frequency of Ringing Signal: 25 [Hz]
OFF
×
Frequency of Ringing Signal: 20 [Hz]
2
ON
×
Voltage of Ringing Signal: 90 [Vrms]
OFF Voltage of Ringing Signal: 75 [Vrms]