Hubbell GAI-TRONICS SmartSeries 701-902, Руководство пользователя

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Pub. 42004-658L2H
701-902 SmartSeries
®
Handset/Speaker Amplifier
Page 4 of 15
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-658L2H.docx
08/19
Interfaces
The assembly connects to the system cable, an external loudspeaker, and any auxiliary devices via the 16-
pin connector,
P1,
located on the speaker amplifier/power supply PCBA. Connector
J2,
on the bottom of
the speaker amplifier/power supply PCBA, connects to optional devices such as a SmartSeries RTU
(remote terminal unit) installed in specially designed enclosures. Other connections on the speaker
amplifier/power supply PCBA provide quick connection/disconnection of subassemblies.
All connections to the system cable must be made by qualified installation technicians. Direct questions
about these connections to GAI-Tronics’ Field Service Department at 800-492-1212 inside the USA or
610-777-1374 outside the USA.
Installation
CAUTION
—Do not install this equipment in hazardous areas other than those indicated on
the approval listing in the Approvals section of this manual. Such installation
may cause a safety hazard and consequent injury or property damage.
WARNING
—Do not disconnect equipment while energized.
The No. 701-902 SmartSeries Handset/Speaker Amplifier plugs directly into any standard GAI-Tronics
700 series enclosure. It also plugs into the following specialized SmartSeries enclosures:
•
SmartSeries station RTU enclosure
•
EPL (Emergency Party Line) enclosure
•
EOL (End-of-Line) party-line module enclosure.
1. Connect the 10-conductor keyed ribbon cable to
J2
on the bottom of the speaker amplifier/power
supply PCBA with the red trace on the ribbon cable edge lined up with
J2
pin one.
This is required when these amplifiers are installed in a SmartSeries enclosure.
N
OTE
: Do not damage the protruding latch wings of connector
J2
located on the bottom edge of the
amplifier during installation.
2. Configure the station address (see the External Adjustments
The user level adjustment control is located on the front panel behind the GAI-Tronics nameplate (see
Figure 1). Use the user adjustment control potentiometer to make three separate adjustments:
•
minimum speaker amplifier output level setting
•
offset amplifier level (difference between the ambient noise and the amplifier output levels)
•
VLC (volume level control) adjustment (sets a preset speaker level to override the normal volume
control setting).
Minimum Level Adjustment
The factory default setting for minimum level is 4.0 watts nominal. To set the minimum amplifier output
level:
1. Loosen the two screws on the GAI-Tronics nameplate and rotate it counterclockwise.
2. Insert a 1/8-inch flat blade screwdriver through the access hole and into the potentiometer.