Communicator 3000 MPE/iX Release 6.0 (Platform Software Release C.60.00) (30216-90269)

222 Chapter 10
Technical Articles
New Features for DTS/TIO Subsystem
• Configuration to enable or disable flow control between the DTC and
the attached device.
• Configuration of the number of stop bits on Host-based DTC ports.
• Specification of whether "Keep Alive" mechanism is to be activated
on Host-based DTC ports to detect if connection is still there.
• Specification of whether port configuration parameters- data length
and parity- have to be forced when binary mode is selected.
• Dynamic Configuration of new port configuration parameters.
With these DTS/TIO enhancements to MPE/iX 6.0, you can use
NMMGR to configure all DTC port configuration functionality that is
available in DTC download version 14.4 using Host-Based DTC
management.
See the manual Configuring System for Terminals, Printers, and Other
Serial Devices for detailed descriptions of these new features.
Support of 400 DTCs
Users can now configure up to 400 DTCs on the HP 3000 host at a time.
This is up from the earlier limit of 120 DTCs in MPE/iX 5.5 release.
Thus the number of DTCs that can be connected to a HP 3000 is
significantly increased.
The maximum number of LDEVs supported on the HP3000 is still
4649. This means that if a high number of DTCs are configured then
the DTCs can not have all ports configured as nailed ldevs. The total
number of supported LDEVs can be spread over the configured DTCs in
any way you want.
Support of 2000 device classes
A device class is a name that can be assigned to a single or a group of
ldevs. This enables the user to refer to the ldev or the group of ldevs by
a name. For example, the ldev associated with a tape driver is referred
to as TAPE. Similarly, LP and DISK are the device classes for the
system printer and disks respectively.
The number of device classes supported has been increased from 1000
to 2000. This enhancement increased the flexibility for those users that
need many devices classes.
Three New Modem Types for Attached
To give more flexibility, support has been added for three new modem
types: US modem In Out, European modem In Out, and Five wires
modem. However, these new modem types will be supported for the new
types of DTCs only: DTC 72MX, DTC 16iX, and DTC 16MX.