Figure 7-43 Hfu-U(Bk)/(Wh) Unit Switches - NEC Electra Elite 192 Hardware Manual

Issue 6
7 - 34
3.8.3 Switch Settings
The HFU-U(BK)/(WH) Unit uses 2-position switches SW1
and SW2.
Refer to
Table 7-5 HFU-U Unit Switch Settings
SW1
Position Position
1 2
OFF ON
ON OFF
OFF ON
ON OFF
 Full Duplex: In some large areas or noisy locations half duplex should be
used. The echo canceling ability of the HFU-U is limited.

Half Duplex: When voice clipping occurs, use a lower decibel setting.

Figure 7-43 HFU-U(BK)/(WH) Unit Switches

Table 7-5 HFU-U Unit Switch
SW2
Position Position
1 2
OFF ON
OFF ON
ON OFF
ON OFF
Electra Elite
Settings.
Description
Full Duplex (Default)
Half Duplex (6db mix ratio)
Half Duplex (12db mix ratio)
Half Duplex (18db mix ratio)
Installing Optional Equipment