6100 MPS-B Programming Manual

INTRODUCTION TO 6100 MPS-B
Line Configuration Options
MPSBNONE (1 byte) specifies that no parity is generated for
transmitted data or checked for received data. The value must
be 2.
MPSBHALF (1 byte) specifies half-duplex mode. That is, RTS is
raised before and dropped immediately after each write operation.
The value must be zero. Half-duplex is the default mode.
MPSBFULL (1 byte) specifies full-duplex mode. RTS stays on all
of the time. The value must be 255.
Note that the CLIP may perform more efficiently with full-duplex
communication lines even though ADM-2 is a half-duplex protocol.
This is because in full-duplex mode the communication line is
turned around more quickly.
MPSBLEASED (1 byte) specifies a leased line. The value must be
zero. This is the default.
DTR is raised and remains so when the line is configured and the
first READ/WRITE request is processed.
MPSBSWITCHED (1 byte) specifies a switched line. The value must
be 255. In this case, the line is assumed to be connected to a
dial-up modem. The user must explicitly issue a CONTROL Connect
request before DTR is raised.
MPSBCONTROLCF (1 byte) specifies that the line is turned around
(data is transmitted--WRITE request) after the carrier (DCD)
drops. The value must be zero. This is the default.
MPSBNOCONTROLCF (1 byte) specifies that the line is turned around
and data is transmitted without waiting for the carrier (DCD) to
drop. The value must be 255.
MPSBNOAUTODISABLE (1 byte) specifies that a station in the poll
list is not automatically disabled following a normal read
operation completion. The value must be zero. This is the
default.
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