HP 9000 Installation And Configuration Manual page 60

Dual Interface Configurations
Affecting Port Mode
NOTE
% zterm
11:04:47 ZCOM Interactive command utility
11:04:47 Primary ZLU is 802
ZTERM> cn,1,200,di
ZTERM> pt,5,6,2,3,0,32768
ZTERM> exit
%
60
All ZLUs on a given port must be disabled before the port mode can be
changed.
If the port is being taken out of Loopback mode, the ZLUs on that port
can now be brought up in the manner that is appropriate to the protocol
being used. For example, if the X.25 protocol is being used, the ZLU
corresponding to the Level 2 X.25 connection could now be brought up.
Refer to the ACC Utilities Reference Guide for details on using the zterm
utility. Refer to the ACC Programmer's Reference Guide for more details
on using the zconfig() or zport() ZCOM functions to change the port
configuration.
The following is an example of using zterm to put an 8-Channel port into
loopback mode:
In this example, the port being put into loopback mode is port 6 on MUX
5. The ZLUs on that port are numbered 1 to 200.
The first command to ZTERM issues a control request to disable the
ZLUs on the port.
The next request is the ZPORT command. The parameter values 5 and 6
are the MUX and port number, respectively. The parameter value 2
indicates that the ZPORT is to be done using the information in this
command. The parameter value 3 indicates that only the port mode is to
be modified. Since the port mode is in the upper two bits of the second
port configuration word, the first configuration word should be 0. To set
the mode as loopback mode, the upper bit of the second configuration
word must be set, i.e. the second configuration word parameter value is
set to 32768. (To set the mode as RS-232 mode, the upper two bits of the
second configuration word must be 0.)
The following is an example of using zterm to put an 8-Channel port into
RS-232 mode:
Chapter 4