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2. If connection to additional 2009 series repeaters is
necessary, additional 8-Way Splitter Shelves, Part
No. 023-2000-924, are added as required.
All additional shelves are connected to the 1.25
MHz Output ports of the 2000 OCXO drawer.
The level at the splitter shelf output ports is approx-
imately -10 dBm. See Figure 2-10.
3. Connection to 8900 Series repeaters is made by
installing an Attenuator Kit, Part No. 023-2000-923,
in the 8-Way Splitter Shelf.
This attenuator assembly should be adjusted to pro-
vide 1 to 1.2V P-P of reference signal at U205, pin
7 of all 8900 Receivers and Exciters in the existing
daisy chain connected to the Attenuator Out port.
Refer to Figure 2-9 for examples of attenuator set-
tings.
A010 IN SPLITTER SHELF
36 dB ATTENUATION
23 dB ATTENUATION
19 dB ATTENUATION
Figure 2-9 ATTENUATOR SETTINGS
2-9
INSTALLATION
October 1999
Part No. 001-2009-201
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