Telex BP-1002 - Manual (Page 10)

6 Operation
Changing Modes of Operation
Perform the following steps to change the mode of operation.
NOTE: Both the Talk and Call indicators should be OFF and the headset should
be connected.
9. Press and hold the Talk key, and then press and hold the Call key.
10. Release both keys.
The Call indicator should now glow red. (The number of beeps heard in the
headset indicates the current mode of operation.)
11. Press the Call key to change to the next mode of operation.
Each press of the Call key will cause the BP-1002/2002 to change to the next
mode of operation.
12. When the desired mode is reached, press the Talk key to select that mode
and exit the mode changing function.
Beeps will be heard in the headset when the mode changing function is
exited. The number of beeps hears indicates the selected mode of operation.
NOTE: Each time the intercom system power is turned ON, the
beltpack will reset to the default mode of operation (mode
2).
Internal Switches, Jumpers and Adjustments
There are several internal switches, jumpers, and adjustments that affect operation.
These are described below. To gain access to the switches, jumpers and adjustments,
disconnect all power and line connections. Remove two screws from the top of each
side and two screws from the bottom of each side. Switch, jumper and adjustment
locations are shown in Figure 2.
TABLE 1. Modes of Operation
Mode (beeps) Mic Kill Audible Call Alert
1 Disabled Disabled
2 (default) Enabled Disabled
3 Disabled Enabled
4 Enabled Enabled