Ring-Gen (Analog Ring Generator) - Avaya Definity SI Maintenance Manual

RING-GEN (Analog Ring Generator)

RING-GEN (Analog Ring Generator)
MO Name (in
Alarm Log)
RING-GEN
1 Where P is an appropriate port network number determined via the Port field from the
Alarm or Error Log.
All analog phones in DEFINITY Generic 1 cabinets must be provided with a
ringing voltage. The RING-GEN (Analog Ring Generator) MO is the device that
provides the ringing voltage for analog phones in a multicarrier or single carrier
cabinet system. In a single carrier cabinet system, the Analog Ring Generator
resides in the Power Distribution Unit (PDU), typically:
WP91153 (single carrier cabinets)
—
—
1217A (single carrier cabinets) has a ring generator slide switch on the
bottom of the unit:
— 20 Hz. for North American and international applications
— 25 Hz. for international applications
Each carrier contains its own Analog Ring Generator.
A ringing voltage generator failure means that no ringing occurs on analog
phones; however, digital and hybrid phones do ring. The ringing voltage is
monitored by the Tone-Clock (active, if duplicated) circuit pack. In an EPN made
up of single-carrier cabinets, the Tone-Clock monitors only the ringing voltage in
the carrier containing the tone clock.
NOTE:
If the TN2182 Tone-Clock is installed in the Processor Interface slot, the
ringing voltage is not monitored.
NOTE:
The TN2036 Voltage Range circuit pack provides easy access for testing
the various voltages on the backplane pins.
See ''Replacing power supplies and fans''
Procedures''
555-233-123
Alarm
Level Initial Command to Run
MAJOR test environment P
Figure 10-86 on page 10-1460
PDU and illustrates that fuse F9 is used for the Analog Ring
Generator.
Figure 10-87 on page 10-1461
the WP-91153 PDU and describes how to replace a fuse.
for information about troubleshooting and replacing power units.
1
Full Name of MO
Analog Ring Generator
shows the position of the WP-91153
shows the position of the fuses on
in Chapter 5, ''Routine Maintenance
Issue 4 May 2002 10-1459