7.5.7 MENUS, SERVICE, MUTE LVL
The front panel speaker is muted by 12 dB whenever a talk key is activated. This is done to prevent
possible feedback between the microphone and speaker. Headphones are muted by 6 dB, also to
prevent possible feedback, especially with open-air style headphones. The muting levels for
speaker and headphones are independently adjustable as follows:
After clicking on MUTE LVL, rotate the SELECT control to select either HDPHONE or
SPEAKER, then click SELECT again. The current muting level will display in the call waiting
window. Rotate the SELECT control to adjust the mute level from -40 dB (maximum muting) to 0
dB (no muting).
Double-click the SELECT control to return to the previous menu level. Or, press and hold the SE-
LECT control for about two seconds to exit menu mode. Remember to save your changes if you
want them retained for future use. See “SERVICE MENU, SAVE CFG”, below.
7.5.8 MENUS, SERVICE, OPTO-ISO (KP-12 with GPI Module Only)
The OPTO-ISO menu configures the four opto-isolated inputs of the optional General Purpose In-
terface (GPI) module. These inputs can activate keys, local relays, groups, and setup pages.
1. Click on OPTO-ISO. The call waiting window will display OPT1.
2. Rotate the SELECT control to select any unused opto-isolator (OPT1-OPT4) then click
SELECT.
3. Rotate SELECT to scroll through the assignment options (see Table
6). Then, click on an
option:
● If you click on a group or a local relay, the assignment will occur immediately and no
confirmation will be given. To check the assignment, use the DISPLAY selection.
● If you select KEY, TAP KEY will display in the call waiting window. Tap an intercom key to
assign that key to be activated by the opto-isolator input. No confirmation of the assignment
will be given. To check the assignment, use the DISPLAY selection.
●
If you click on a setup page, the call waiting window will display TAP KEY. Tap any
intercom key on the panel where you want to assign the setup page. No confirmation of the
assignment will be given. To check the assignment, use the DISPLAY selection.
●
If you click on CLEAR, the assignment for that opto-isolator input will be cleared
immediately. No confirmation of the cleared assignment will be given. To check that the
assignment is cleared, use the DISPLAY selection.
●
When you use DISPLAY to check the current status of an opto-isolator input, one of the
following indications will be given:
If the opto-isolator is assigned to a group or relay, the group or relay number will display
in the call waiting window.
If the opto-isolator is assigned to actuate an intercom key, the key number will appear in
the call waiting window. KEY 0 corresponds to the first key at the left end of the
keypanel.
If the opto-isolator is assigned to a setup page, the setup page number and the panel to
which it is assigned will appear in the call waiting window.
44 User Manual, DKP-8, DKP-12 and KP-12 Keypanels with Push-button Keys
(90 paginas)
(36 paginas)
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