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Web Browser Interface
MAN-REF-CASW
Channel Define Interface
This button defines a channel interface, which consists of a range of devices for use by a particular
NetEx/IP.
⇒
Note: a channel board must be defined first before defining any channel interfaces.
Prior to selecting this button, provide the following data on the selection screen:
IFname
a name by which the interface will be identified.
Prot
the channel protocol version.
HCM
is the traditional HYPERchannel mode message/data format.
HCM2
is a single-CCW protocol which is more efficient for small
channel transfer applications. The host NetEx must support this (cur-
rently only supported in H210IP 6.1 and later).
On board
the name of the board on which this interface is being defined. Auto-
Define uses ‘board1’ and ‘board2’
StartGna
the GNA address of the first device in the form 'UUSS', where 'UU' is
the NETADDR for this ADAPTER definition in the NCT. ‘SS’ must
be the same as the first device address lower byte. The SMGDREF
definition for this ADAPTER definition in the NCT must be in the
range 'SS' to 'SS' + Number of devices.
Number of devices
the number of devices being defined for this interface (4 is normally
sufficient). The maximum number of devices that can be defined per
interface definition is 16.
Input
(optional) the low-order byte of the input device.
UADD
the unit address of the device.
Max Data -
(optional) the memory allocation size used by the Channel driver to
buffer data coming off or going on the channel. This value must be at
least as large as the NetEx/IP segsize parameter. The default is 65535
bytes.
For ESCON devices only -
CU -
the control unit number. Up to sixteen control units can be specified,
ranging from 0-F. A unique Control Unit should be defined for each
concurrent host, or host partition, running NetEx/IP. Note: CU 0 must
be used if connection is to a Unisys system.
CHlink -
the ESCON director port number to which the channel is connected that
is used for communicating to the ESCON board. If the ESCON inter-
face is connected directly to the channel without going through an ES-
