GAI-Tronics 12389-001 NOVA PA/GA Systems S.M.A.R.T. Modules - Manual (Page 14)

Pub. 42004-674L2H
NOVA P UBLIC A DDRESS S YSTEMS - S.M.A.R.T. M ODULES P AGE 12 of 24
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Setting the Individual Tone Output Level
3. Connect only the field wiring for the channel which is having its output level adjusted. Disconnect
the other terminal blocks.
4. Set the Test Tone Generator into the Diagnostic mode by putting jumper P5 onto positions 2 and 3.
This will turn on the 35 Hz output continuously.
5. Adjust the pot for the channel being set so that the level of the 35 Hz tone at the farthest remote is
50 Vrms.
6. Repeat steps 3 and 5 for all channels in use, then put P5 onto positions 1 and 2 taking the Test Tone
Generator out of the Diagnostic mode.
Test Tone Generator Specifications
Power input ....................................................................................... 24 V dc +/−20% @ 150 mA maximum
Physical size .............................................................................................. 4.00 W
 6.50 L  1.250 D inches
Operating environment ................................................... 0  C to 50 C @ 95 % humidity (non-condensing)
Inputs ..................................................... Four channels, low level (0 dBm) balanced audio line connections
Input impedance ............................................................................................ 600 ohms or 100 k
 selectable
Connection method ................................................................... 5-mm Euro-style wire-capture terminal strip
System connection .................................... RS-485 I/O non-isolated, for external communication with CPU
Connection is via 8-pin modular jack
Output ............................................................. Four channels, low level (0 dBm) balanced audio line driver
Output impedance ............................................................................................................................ 100 ohms
Connection method ................................................................... 5-mm Euro-style wire-capture terminal strip
Tone output level .................................................................................... Variable from +4 dBm to −46 dBm
Fuse Replacement
CAUTION
For continued safe operation, replace fuses with the same type:
F1 is a Bussman GDC 500 mA fuse.