Service manual
EXTERNAL SERIAL CONTROL PROTOCOL
B-10
April 2001
Part No. 001-9800-203
Data:
Action:
0x00 - Subscriber unit powering down
0x01 - Subscriber unit remaining operational
B.5 STANDARD COMMAND MODE
B.5.1 INTRODUCTION
This is the normal operating mode for the radio
and external devices. There are two primary types of
messages that are used in this mode. User Interface
Messages control user displays or simulate user
actions. These messages are used by a device such as a
simple remote control unit.
The other type of messages are Operational
Control messages. These messages directly control
primary radio operations.
B.5.2 USER INTERFACE MESSAGES
CMD RESET POWER UP
Function
: This opcode indicates the receiving unit
should execute a “power-up reset” including
device registration.
Device Action
: Initialize and disable all display fields
to a power up default condition, change control
state to UNREGISTERED.
Origin
: Any device on bus
Format
:
Data
: None
CMD RESET WARM
Function
: This opcode indicates that the receiving unit
should execute a “warm reset” (soft reset).
Device Action
: Initialize all display fields to active-
idle and field controls to default settings. The
control state remains REGISTERED.
Origin
: Any device on bus
Format
:
Data
: None
CMD REQUEST BANK NAMES
Function
: This opcode requests that the subscriber unit
send a series of INFO BANK NAME messages
enumerating all of the programmed bank names.
Origin
: External device
Format
:
Data
: None
CMD REQUEST GROUP NAMES
Function
: This opcode requests the subscriber unit to
send a series of INFO GROUP NAME messages
(see page B-19) enumerating all of the
programmed groups in the current system.
Origin
: External device
Format
:
Data
: None
Opcode
8 bits
0x34
Opcode
8 bits
0x32
Opcode
8 bits
0x36
Opcode
8 bits
0x37