Verilink PRISM 3000 (34-00184) Product Manual Manual de usuario descargar pdf (Pagina 29)

Terminal Operation 4-1PRISM 3000

Terminal Operation

4.0 Introduction

This chapter describes the screens and menus associated

with the TxPORT PRISM 3000 terminal interface, which is

a firmware application program embedded inside the unit.

The ‘Operations’ chapter discussed the screens and menus

associated with the front panel interface. Although the

options are essentially the same for both interfaces, the ter-

minal interface is able to show more parameters on each

screen. The same is true for the EM8000 element manager.

4.1 System Description

The Terminal Interface requires an ANSI compatible VT100

terminal (ASCII), or a computer running an ANSI terminal

emulation program. The Terminal Interface utilizes ASCII

‘BREAK’ and ‘ESCAPE’ functions, which are implemented

differently with the various terminal emulation programs.

The documentation supplied with the terminal emulation

program should be consulted for further reference.

In addition to the 54016 and T1.403 protocols, proprietary

messages can be sent over the facility data link (FDL) from

the near end PRISM unit to the far end PRISM unit. A local

RS232 terminal connected to the unit may access a far end

PRISM. Thus, the remote unit may be queried for status and

statistics, configured, or looped for testing as if the terminal

is connected to it directly.

4.1.1 Interface Connection

The terminal may be connected to either of two 6-pin serial

RS232 ports on the PRISM 3000. One of the modular ports

is a pair of daisy chain type rear panel connectors labeled

‘NMS IN’ and ‘NMS OUT’. The other port is labeled ‘SUPV’.

Refer to Section 2.10 on page 2-4 for further information.

Cables are available for most typical connections. Standard

cables and ordering numbers are listed in Section 1.6 on

page 1-5. Contact TxPORT for any assistance in cable

selection.

A serial bit rate of 1200, 2400, 9600, or 19200 b/s may be

selected using the front control panel (refer to ‘Supv Bit

Rate’ in Section 3.8 on page 3-10).

Both serial ports support the same custom protocols which

allow the terminal interface or the EM8000 to request and

receive performance/configuration data from the PRISM.

The unit automatically determines which protocol is needed.

4.1.2 Modem Compatibility

The PRISM 3000 terminal interface supports use of an ‘AT’

command set compatible modem on either, or both, of the

‘NMS IN’ and ‘SUPV’ serial ports. The modem should be

optioned to ignore DTR, enable auto answer, inhibit com-

mand echo, and return verbal result codes.

NOTE: If the user calls the PRISM unit and sends the

‘

BREAK

’ command before receiving the ‘

CONNECT

’

message, the modem will hang up.

4.1.3 Screen Components

Terminal interface screens have several components com-

mon to all screens and will be discussed individually in the

following paragraphs. These common elements are shown in

the ‘Password Screen’ (refer to Screen 4-1 on this page).

Device Type and Revision: The device type (the PRISM

3000) and the revision control numbers are shown in the

upper left corner. The first number is the hardware revision

and the second number is the software revision. Information

is displayed for the near end unit (connected directly to the

terminal) on the top line, and for the far end unit (connected

3000

DSU x.xx/x.xx PRISM

3000

Date: MM/DD/YY

No Far End Response Atlanta: (3) Time: HH:MM:SS

------------------------------- PASSWORD SCREEN --------------------------------

Enter Password: (**********)

Start Date: MM/DD/YY

Start Time: HH:MM:SS

----------------------------------- Messages -----------------------------------

Screen 4-1 Password

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 44 45

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