IBM 1 Series - Page 185

A-6
GA34-0033
RLO
PPO
DCO
DTO
Remote local interface function inhibits the GPIB adapter from
responding to the remote enable (REN), go to local (GTL), or
local lock out (LLO) interface messages; the GPIB adapter is the
only permitted active controller.
Parallel poll (PPO) interface function inhibits the GPIB adapter
from responding to a parallel poll sequence; the GPIB adapter is
the only permitted active controller.
Device clear (DCO) interface function inhibits the GPIB adapter
from responding to a device clear message; the GPIB adapter is
the only permitted active controller.
Device trigger (DTO) interface function inhibits the GPIB adapter
from responding to a group execute trigger (GET) message; the
GPIB adapter is the only permitted active controller.
For further information concerning these functions or the general purpose
interface bus, refer to the JEEE Standard Digital Interface for
Programmable Instrumentation, published by the Institute of Electrical and
Electronics Engineers, Inc., 345 East 47th Street, New York, New York
10017. Refer also to the JBM Series/1 General Purpose Interface Bus
(GPIB) Adapter—RPQ D02118 Custom Feature, GA34-1556.