Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 148)

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. Directly 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”