Service manual

EXTERNAL SERIAL CONTROL PROTOCOL
B-17
April 2001
Part No. 001-9800-203
Format:
On-Off
:
0x00 - off-hook
0xFF - on-hook
EVENT INPUT
Function
: This message indicates that one of the input
lines has changed status. The data field indicates
the current state of the lines. Some of the input
lines are interrupt driven while others are polled.
Therefore, depending on which line changes, not
all transitions may be detected. A “1” indicates that
the programmed input is in the active
condition.
Origin
: Subscriber unit
Format
:
Status
:
EVENT KEYPAD
Function
: Indicates that the referenced button is
pressed or released. The External Device must
encode a valid debounced key pressed as well as a
valid key release before indicating the next key
down (n-key roll over not supported).
Origin
: External Device
Format
:
Data
:
Status:
0x0 - key pressed
0x1 - key released
Event ID:
0x00 - 0x0F Key/button event
0x11 - 0x7F reserved
EVENT OUTPUT
Function
: This message indicates that one of the
output lines has changed status. The data field indi-
cates that a state change has occurred on the line,
not the current status of the line.
NOTE: If Option 1 is programmed as an input, it does
not appear in an Event Output message.
Origin
: Subscriber unit
Format
:
Status
:
Opcode On-Off
1 byte 1 byte
0x0c
Opcode Status
8 bits 8 bits
0x0b
Input Line Bit Set
Option 1 0
Input 2 1
Input 3 2
Opcode Status Event ID
8 bits 1 bit 7 bits variable
0x3f
Opcode Status
8 bits 1 byte
0x06
Output Line Status Set Status Clear
Option 1 01 00
Output A A1 A0
Output B B1 B0
Output C C1 C0
Output D D1 D0
Output E E1 E0
Output F F1 F0