IBM 4381 Manual page 127

• Remote Console mode, which permits remote control of the 4381 Processor
from any RETAIN terminal or from a 3275 display.
Remote Operator Console Facility (ROCF) mode, which permits the customer
to operate the system console from a remote location (as described in Section
40:15).
Data Bank Mode. When the local customer engineer cannot locate the cause of a
problem utilizing the generated reference code and MAPS documentation or when
a reference code is not generated, the customer engineer can invoke RSF to access
the data bank. When Data Bank mode of RSF is activated, the 3278 Model 2A,
3279 Model 2C, or 3205 console of the 4381 Processor appears to be a terminal
with a processor-to-processor interface to a special data bank system dial port.
The 4381 Processor must be in hard-stop mode before Data Bank mode can be
invoked and only one console and one hard-copy printer can be active during Data
Bank mode operations. When Data Bank mode is terminated, the state of the 4381
Processor is unpredictable. Thus, a re-IML or re-IPL will be necessary, depending
on the state in effect.
Remote Console Mode. When the Field Support Center (FSC) is contacted by a
local customer engineer, the FSC may instruct the local customer engineer to
invoke the Remote Console mode of RSF to enable a remote customer engineer
specialist to control operation of the malfunctioning 4381 Processor for diagnostic
purposes.
To activate Remote Console mode, the local customer engineer must
(1)
select the
Remote Console Initialization display from the Configuration display, (2) select the
remote console entry, (3) enter identifying information about the 4381 Processor
(for example, branch office and customer number), and (4) dial the data bank
system to establish a communication link. This causes the data bank system to
perform a security check on the specified 4381 Processor and the link is
disconnected if the 4381 Processor is not registered.
Advantages. The basic design of the Remote Support Facility includes customer
security features. First, operation of RSF can be requested only from the customer
installation and a security check is performed before the facility is initiated.
Second, via the local operator console, the customer can monitor all operations
performed while RSF is active and the facility can be deactivated immediately at
any time by depression of the LINE DISC key on the local operator console. (RSF
can also be deactivated by the remote specialist via the data bank or 3275
terminal.)
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A Guide to the IBM 4381 Processor