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No polling – Verilink 9000 Series (34-00271) Product Manual User Manual

Page 196

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174

C

HAPTER

10: L

EGACY

O

PTIONS

As was described in Auto Connect On Power Up on page 165, the MultiPro unit
continues to poll a device every 30 seconds to try to establish a connection for the
device. If this device happens to be an ATM as shown in Figure 10-15, it never
notifies the customers that it is disabled. To remedy the situation, this option should
be turned on. This means that the terminal port does not poll the device unless the
host port is active. The terminal port determines when the host port is active because
it receives a connect request from the host port for this device when the host port is
on-line. This means that instead of the terminal device initiating the connection to
the host, the host port initiates a connection to the terminal device when the host
begins polling the MultiPro unit. Using this method, the MultiPro platform does not
poll the device if the host is not polling the MultiPro unit.

Figure 10-16 and Figure 10-17 show the host and terminal port entries for a device
using this option. Notice also that the host port has option G (auto connect on link
active) set to yes.

X

DOWNLOAD CONFIG

MODE BACKUP

NET

ALARM POWER

PRISM 9111

T

R

A

N

S

P

O

R

T

®

Processor

No polling

ATM

20

20

Figure 10-15 Typical Application of Wait for Host Connection Option

TXPORT INTELLINET Configuration Program

Configuration 1000

Host Port Station Parameters

Line Module [1 ] Port [1] Description

Host Group Auto Connect Options XN #

Address Address Station Name ABCDEFGHIJKLMNOP Type

AT ATM-AT NNNNNNYNNNNNNNNN N

F1=Hlp F2=Mod F3=Add F4=List F5=Clr F6=DelAll F7=Copy F8=Jmp F9=Prev F10=Next

Figure 10-16 Host Screen Showing Wait for Host Connection Option