Dialogic M7324 - Manual (Page 42)

Dialogic
®
PBX Integration Board User’s Guide
value of eight [0x08] indicates ON), while the green light has six possible
values. The status of the indicators is obtained by bitwise-ANDing the
returned value from the green light with the value from the red light (green
light value + red light value). In other words, the value for a line indicator in
use with a call (after ANDing with 0x0f, all the values shown below in the
least significant byte value) would be nine--0x08 (for red light on) + 0x01 (for
green light on). The status conditions for each byte (least significant) of the
green light are defined as indicated in
Table 2 .
Table 2. Avaya 7434 and 8434 LED Indicator States
State Value (Hex)
off 0x00
on 0x01
ringing 0x02
hold 0x03
error 0x04
unknown 0x05
Reading LED Indicators
The Dialogic ® PBX Integration Board can determine the state of its LED
indicators by using the d42_indicators( ) function to retrieve the LED
indicators data. This function places the Line Indicator data (34 bytes) in an
application buffer. Bytes 1-34 contain the indicator status for Memory Keys
00-33, respectively (see
Table 3 ).
Table 3. Avaya 7434 and 8434
Direct Key Dialing Strings for Feature Keys
Byte Key Description Dial String
1 Feature Button 00 KA
2 Feature Button 01 KB
3 Feature Button 02 KC
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