PERFORMING DOWNLOADS
Set Up the Download Environment
118 VX 520 REFERENCE GUIDE
• All current passwords are retained on the receiving terminal during an
application or operating system download (direct, by telephone, and back-to-
back). This includes the terminal manager password and file group
passwords. If required, you can replace existing file group passwords with new
values as part of the data transfer operation.
• For back-to-back application downloads, clear the RAM and flash of the
receiving terminal before initiating the download. All application files stored on
the receiving terminal, including CONFIG.SYS settings, are replaced by those
of the sending terminal. Verix Terminal Manager and file group passwords are
retained on the receiving terminal.
• For full operating system downloads, Group 1 RAM is cleared as part of the
operation and any application files stored in GID1 are erased. In this case,
previously downloaded and authenticated applications must be downloaded in
a subsequent operation, together with the certificates and signature files
required to authenticate them.
Set Up the
Download
Environment
The first step in performing a download to a VX 520 terminal is to establish the
physical communication link between the sending and receiving systems required
to support the following download methods:
• Direct serial cable connection for direct application and OS downloads:
The link is between the COM1 port of a download computer (PC) and the
COM1 port on the receiving VX 520 terminal.
Two special cables are available from VeriFone to support direct downloads:
one for computers with DB-25-type serial connectors (VPN 26263-02) and
another for DB-9-type connectors (VPN 26264-01). Both of these cables have
a 10-pin RJ-45 modular plug on one end for the terminal-side connection.
• Telephone line connection for application or OS downloads by
telephone: The link is from the modem connection of a host computer to the
integrated modem direct in the receiving terminal (see Figure 34).
For this type of download operation, a standard telephone line cord with
modular Telco connectors is required.
• Direct serial cable connection for back-to-back application downloads:
The link is between the RS-232 ports of the sending and receiving
VX 520 terminals.
A special cable is required for back-to-back downloads (VPN 05651-00). This
cable has two 10-pin RJ-45 modular plugs on each end to establish the
terminal-to-terminal connection.
Always modify the Verix Terminal Manager password in a separate, securely-
controlled operation. Ensure that this password is retained in a secure place.
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