Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Preparing to Configure DTCs
Defining the DTC Connector Cards (or Boards)
Chapter 2
37
Defining the DTC Connector Cards (or Boards)
Connector cards (also called boards) in the DTC allow terminals, printers, and other
serial devices to be connected to the DTC for communication with an HP 3000 Series
900.
For each connector card in a DTC, you must define the characteristics of its ports for
connection to terminals, printers, and other serial devices. The following parameters are
required:
Card Number The card number specifies which card in the DTC is being configured.
DTC 16s allow 2 connector cards, labeled card # 0 and card #1, with
the third slot (card # 2) reserved for a DTC/X.25 Network Access card.
When looking at the rear panel of the DTC, card # 0 is located on the
left, card # 1 is in the middle, and card # 2 is on the right.
DTC 48s allow up to 6 connector cards, labeled card # 0 to 5.
DTC 72MXs allow up to 3 connector cards plus a LAN card that is
preinstalled in slot 0; the connector cards are labeled card # 1 through
3.
For the DTC 48 and 72MX, card # 0 resides at the bottom of the DTC
and card # 1 resides above it, and so on.
Note that the DTC 16iX/16MX/16RX does not have connector cards. Its
port connectors are built directly onto its backplane.
Direct or Modem Connect You must specify whether a direct or modem connection is
used for the ports in a card. Direct connections are used for devices
that reside near the DTC. Modem connections are essential for
communications over telephone lines.
Port Number Each port on a connector card is assigned a number, starting with port
# 0 on the left most side of the card.
Logical Device Number (LDEV) The ldev number is used by MPE/iX to designate
devices. Devices with ldev numbers permanently assigned to them are
called nailed devices. Printers and UPSs, as well as devices that will
be programmatically accessed, must be nailed devices. Each nailed
ldev number assigned in NMMGR must be unique.
If the DTC management is PC-based (that is, managed by an
OpenView Windows Workstation), or you have the latest patches
installed on Release 7.0 or 7.5 or newer, you may have ports without
ldev numbers assigned to them; hence they are non-nailed devices.
Non-nailed devices have ldev numbers that are assigned from a pool of
available ldev numbers for the duration of the device connection to the
system.
If the DTC management is Host-Based (the DTC is managed by the HP
e3000) you may also configure a non-nailed port if the ldev number of
-1 is entered. If an ldev number of -1 is entered, then a profile name
must also be entered. A port that is configured with the ldev number of
-1 will be downloaded with the DTC parameters configured in the