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3-66 Hardware installation
Limited distance connection
553-4011-110 Standard 1.0 November 1994
The limited distance connection method must be used if the octopus cable
of a nodal Meridian MAX is more than 50 feet but less than five miles from
the NAC 2. The limited-distance modem must be self-powered. The added
range depends on the modem you obtain. Limited-distance modems are
recommended for use inside buildings only.
The following settings are used for a limited-distance modem:
9600 baud rate
8 bits, no-parity, 1 stop bit
Limited distance connections are used for remote supervisor logins and
network links. Refer to the "Peripheral equipment" chapter, "Remote
supervisor login modems" and "Network link modems" section for more
information.
The cable between the Meridian MAX, running on an application module,
and the limited distance modem is a modem cable NT7D99AA. Figure 3-16
illustrates this connection and how to connect the two modems together.
Two NT7D99AA cables are required. Connect the DB-25 end of the first
NT7D99AA cable to the octopus cable at the NAC end. The other end of
the cable is a DB-25 male connector, which is attached to the first limited
distance modem.
Connect the DB-25 end of the second NT7D99AA cable to the octopus
cable at the Meridian MAX end. The other end of the cable is a DB-25
male connector, which is attached to the second limited distance modem.
The Meridian MAX modem and the NAC modem are connected to each
other via a telephone network. Figure 3-16 illustrates this connection.
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