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Appendix B - HMU Configuration for X.25 and Ethernet Connections
A
PPENDIX
E
AND
THERNET
O
M
PERATING
ODES
The HMU may be connected to an X.25 network through the OS port (J30 on the rear of the Wideband 3190), if
properly configured. Regardless of the connection type (X.25, IP, or Serial), the HMU must be configured for one
of two operating modes, Interactive or Network Management Administration (NMA). Depending on the mode
selected, TAO (often referred to as the Craft screen interface) and TL1 communications are supported.
Interactive Mode
The Interactive Mode is intended for human interface and supports both TAO and TL1 communication. The HMU
echoes input from the user in a conventional command line interface. If the user enters a partial TL1 command,
the HMU prompts the user for additional input to formulate a complete TL1 command.
NMA Mode
NMA Mode is used for communication with the Telcordia NMA Operational Support System and supports TL1
communication only. (TAO is not supported.) NMA Mode does not echo any input and does not automatically
complete partial TL1 commands. The HMU expects a complete TL1 command that is terminated by a semicolon
(';'). The Ethernet Port (J34 on the rear of the Wideband 3190) may also be used for NMA mode as an alternative
to the X.25 OS port. Refer to
X.25 P
C
ORT
ONFIGURATION
Initial configuration of the OS port for X.25 operation requires that the user log on to the HMU through a different
physical port (Serial or Ethernet). Once the user is logged on to the HMU through one of these ports, configuration
of the OS port for X.25 operation is accomplished through the HMU Craft screens or by using TL1 commands.
Configuring the OS port through the HMU Craft screens is easier than using TL1 commands.
X.25 Port Configuration Using Craft Screens
The OS port is configured for X.25 operation through the HMU Shelf Options screen, Port Setting (option P). Only
Interactive Mode supports TAO.
1
Connect to the HMU through either the Serial or Ethernet port. If connected to the Serial port, use a PC
running HyperTerminal; if connected to the Ethernet port, use a Telnet session.
2
Type TAO, then press
Status screen displays
3
Type the number of the shelf to be configured for X.25. The Shelf Status screen displays
4
Press
O
to access the Shelf Options screen.
76
B - HMU C
C
ONNECTIONS
"Ethernet Port Configuration Procedure" on page 79
P
ROCEDURE
ENTER
. If prompted for a password, type public, then press
ONFIGURATION FOR
July 14, 2002
LTPH-SM-1052-04
X.25
for further details.
ENTER
. The Network
HMS-358 List 5 and List 6
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