Hubbell GAI-TRONICS SmartSeries 701-902, Manual

Page: 8 / 18

Pub. 42004-658L2H
701-902 SmartSeries
®
Handset/Speaker Amplifier
Page 6 of 15
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Internal Adjustments
The station address, sidetone volume level, and handset receiver volume level are adjusted internally (see
Figure 2). Turn the control clockwise to increase the volume or threshold; turn it counterclockwise to
decrease the volume or threshold.
Station Address
SmartSeries stations in ADVANCE systems must be assigned a unique address using the hexadecimal
switches,
S1
(Hi Address) and
S2
(Lo Address) for the SmartSeries option to function properly (see
Figure 2).
•
Each switch contains 16 settings, labeled 0–F. A small arrow on each switch indicates the setting.
•
The station address is determined by the high address setting followed by the low address setting.
For example, to assign an address of 05, the high station address switch, S1, is set to 0 and the low
address switch, S2, is set to 5.
•
Valid address settings are 05 to FE.
•
Record the address assigned to each station in the system.
•
Set the address to 04 (default) if the SmartSeries PCBA is installed in a system without an
ADVANCE head end.
N
OTE
: The following level adjustments are not typically required.
Handset Receiver Volume
Use the control labeled
RCVR VOL
(see Figure 2 Ref. 7, on the Handset/FSK/

P PCBA) to adjust the
handset receiver volume to the desired level for voice signals from a party line.
Sidetone Volume
The control labeled
SIDETONE
(see Figure 2 Ref. 4, on the Handset/FSK/

P PCBA) adjusts the
handset/headset sidetone.
4. section).
5. Ensure that connector
P1
mates securely with the receptacle in the enclosure and then tighten the four
screws at the corners of the amplifier’s front panel.
6. Make all necessary audio level adjustments (see the External Adjustments and Internal Adjustments
sections).
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).