| Option F | :4!c/[8c]/4!c | (Qualifier)(Data Source Scheme)(Indicator) |
Order |
M/O |
Qualifier |
R/N |
CR |
Options |
Qualifier Description |
1 |
M |
INST |
N |
|
F |
Type of Instruction Indicator |
This qualified generic field specifies:
INST |
Type of Instruction Indicator |
Specifies the type of instruction covered by the message. |
If Qualifier is INST and Data Source Scheme is not present, Indicator must contain one of the following codes :
DERI |
Deregistration Instruction |
Deregistration of positions in registration. |
REGI |
Registration Instruction |
Registration of unregistered positions. Initial or first registration. |
RERE |
Reregistration Instruction |
Reregistration of previously deregistered positions. |