Envoy ACP/XF Application Programming Manual

System Procedure Call Specifics for EnvoyACP/XF
EnvoyACP/XF Application Programming Manual–132179
4-4
CONTROL Procedure
parameter-1
.<0>
= 0: Sends a SIM command to all stations.
= 1: Sends a SIM command to a specific station, as
indicated in .<8;15> (only NRM multipoint).
= 1: Sends a RSET command (ABM).
.<1:15> = 4: Sends a SIM only to those stations that were in an
error-stop state.
.<8:15> Specifies the station-index value of the station that is
to receive the SIM command (only relevant if .<0> =
1).
15 Sets Receive Not Ready (RNR) to hold off receipt of
incoming I-frames. Indicates that the station is busy or
the buffer is full. Frames already queued to be read
remain available to the application.
16 Sets Receive Ready (RR), clearing RNR and allowing
the station to receive incoming I-frames.
17
Sets DTR. Causes a request to the driver to
perform a modem-control operation to raise DTR.
If the parameter equals 1, the request does not
complete until DSR is raised; otherwise, the
request completes immediately.
parameter-1 = 0: Sets DTR.
= 1: Sets DTR and waits for DSR. Only applies to
switched lines.
18 parameter-1 Sends the DISC command. For detailed information
on how this command is used in ABM and NRM
configurations, see Sections 3 and 4.
parameter-2
ABM.<0> = 0: Switches the local station to the Logical
Disconnected state (LDS), so that the station
responds with DM to a SABM from the remote
station.
= 1: Switches local station to off line state, so that the
station responds with UA to a SABM from the
remote station.
NRM Sup.<0> = 0: Sends DISC to all tributary station(s) configured
for the line.
= 1: Sends DISC to the tributary station(s) specified by
the station index in <8:15>.
.<1:15> = 4: Sends DISC only to those stations that were in an
error-stop state.
Table 4-2. CONTROL Function Codes (page 2 of 3)
Function
Code Parameter Description