Specifications

Multiport for TNPP and TAP Outdial
138 025-9035AA
The third class of addresses is any node address not selected in the other two classes.
These can be considered as “unknown” node addresses. What action to take when
handling an unknown address is configured on a per-port basis. The choice of action
include rejecting the packet, by sending a Cancel reply, accept the packet but then ignore
it, and to accept the packet and route it to one or more ports.
To route to more than one port, your Multiport card needs sufficient serial ports, software
options, and the associated link connection to each additional TNPP network node. The
Multiport card provides an RS-232 serial interface per port; the link connection must
interface with this. Please note that the amount of network traffic in your application may
place restrictions on the type of link that you use.
Items Supplied for this Configuration
Instead of the regular Multiport software, the items listed in Table 15 are supplied for
TNPP Multiport operation.
Table 17: Items Supplied in TNPP Multiport Option
When running ZPAGE version 310 or later the Multiport card can support both Network
USA and bi-directional TNPP at the same time.
Port Configuration
When used for Multi-Node TNPP, you need enough serial ports on the Multiport card
(950-9346) for the number of physical TNPP nodes/links you will be connecting.
When used for Single-Node TNPP, the Multiport card hardware is only used in its two-
port configuration. Only a single serial port is actually used. (There is present a second
physical serial port, which is used only for production testing).
If Satellite mode, the -B16 option, is the only active option then the Multiport hardware is
only used in its two-port mode. However the card is not restricted to just a single software
or two hardware port mode, full bi-directional TNPP may be added by purchasing the
needed number of -B17 options.
When used for networking the Multiport card is dedicated to supporting TNPP. You can
not use the other serial ports that are potentially available on the card's hardware for any
other functions, such as alpha input.
Qty Part # Description
1 -B90 ZbaseW Software Update to add Networking options, if
needed
1 -Bl6 Network USA (one-way) software (usually transferred via
modem to your paging terminal)