Service manual

EXTERNAL SERIAL CONTROL PROTOCOL
B-23
April 2001
Part No. 001-9800-203
CMD SET GID
Function
: Overrides the current group encode and
decode IDs and changes them to the values in the
data field. On a trunking system (LTR or Multi-
Net), this sets the over-the-air IDs. On a conven-
tional system, it is ignored.
Format
:
Data
:
Tx ID - Sets the transmit encode ID; zero releases
the override
Rx ID - Sets the receive decode ID; zero releases
the override
EVENT CALL
NOTE: This message is supported only by transceivers
which have revision 208 or later Flash software.
Function
: Provides a notification from subscriber unit
that the specified call event has occurred.
Format
:
Data
:
Event:
System Index No.:
System index number on which the call was
received (only sent when a valid call is
received). NOTE: Refer to INFO SYSTEM
NAME message description on page B-21 for
more information on system index numbers.
Group Index No.:
For call end - Not sent
For voice or data call - Conventional = Index of
group on which the call was received;
Trunked = group decode ID.
For block decode - Group decode ID
NOTE: Refer to INFO GROUP NAME message
description on page B-19 for more information
on group index numbers.
Unique ID:
Included on Multi-Net systems only, for any
call received event
EVENT SCAN
Function
: Provides a notification from the subscriber
unit that the specified scan event has occurred. In
addition, if the message is from the external unit, it
provides commands that set the scanning type.
Group scanning may be disabled on a per system
basis by personality programming. Therefore,
setting the scan type may not enable scanning. The
scan type cannot be changed while the subscriber
unit is scanning.
Opcode Tx ID Rx ID
1 byte 1 byte 1 byte
0x54
Opcode Event
System
Index No.
Group
Index No.
Unique ID
1 byte 1 byte 1 byte 1 byte 2 bytes
0x48
Bit Description
7 (MSB) - 6 [reserved]
5 Call Start (1 = call received,
0 = call ended)
4 Voice (1= voice call, 2=data call)
3 Trunked (1= trunked call,
0 = conventional call)
2 - 0 (LSB) Priority:
0x0 = block decode (trunked only)
0x1 = group scan
0x2 = [reserved]
0x3 = last selected
0x4 = [reserved]
0x5 = priority 2
0x6 = priority 1
0x7 = all call (Multi-Net only)
Bit Description