Verilink Access Manager 2000 (896-502037-001) Product Manua Instrukcja Użytkownika Pobierz pdf (Strona 148)

100

101

Configuring the T1 Network

5-24

Access Manager 2000 User Manual

devices (modem, stat mux, or X.25 PAD). Consequently, when an alarm

is sent from the node controller to the Access Manager, it will travel along

whichever of these connections you have installed. The alarm may be

sent:

1. Direct

ly from the node controller to the PC (via a NULL modem

cable)

2. To a modem

which will dial another modem connected to an Access

Manager

3. To an X.25 PAD

(Packet Assembler Disassember) which will

contact another specified X.25 PAD attached to an Access Manager

4. To a stat mux

for relay through an assigned port to another Access

Manager

Direct connection allows you to set up only one

dedicated path for the

alarm.

However, because modems

, X.25 PADs, and stat muxes are addressable

com port access devices, any one

of them may now be used to set up two

alarm destinations.

The following diagrams show three typical scenarios set up for the new

Alternate Alarm Path functionality.

■ Figure 5 -3, “Application using modems”

■ Figure 5 -4, “Application using a stat mux device”

■ Figure 5 -5, “Application using X.25 PADs”

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