Figure 2-4 Transparent Mode - Data I/O UniSite-xpi User Manual

2. Setup and Installation
Transparent Mode
Figure 2-4
Transparent Mode
What You Need
Approved Terminals
2-12
Transparent mode, shown in Figure 2-4, is a feature of the programmer
that allows the programmer to be inline between your terminal and host
computer. This eliminates the need for a switch box or a second link to
the host, and enables you to download directly from the host to the
programmer. The host could be a networked file server such as a VAX or
a Sun. When set up properly, the terminal connected to the programmer
can control both the programmer and the remote host.
Terminal or
PC/Workstation
running
Terminal Emulation
Software
In transparent mode, the programmer passes all characters through its
Terminal and Remote ports as if it weren't there. The two serial ports on
the programmer can even operate at different baud rates. While
operating the programmer from the terminal, press E
toggle the programmer between terminal mode and transparent mode.
The programmer remains in transparent mode until it receives another
E , C + T command, at which time it switches back to terminal
SC TRL
mode.
To connect the programmer to a terminal, you need the following:
• An unused RS-232C serial port on the terminal.
• 25-pin serial cable. If you need more information about which type of
cable will work with the programmer, or if you need to build your
own cable, see the section later in this chapter titled "More About
Cables."
• If you are going to operate the programmer in transparent mode, you
will also need the following:
• An unused RS-232C serial port on the host. The host can be a VAX, a
Sun, etc.
• 25-pin serial cable.
Before you connect your terminal to the programmer, make sure your
terminal is compatible with the programmer. If your terminal type is
listed below, then your terminal is compatible with the programmer.
• ANSI 3.64 compatible terminals
• DEC VT-100 compatible terminals
• Qume QVT-101 compatible terminals
• TELEVIDEO TVI-910 compatible terminals
• Wyse WY-30 compatible terminals
T R
Programmer Programmer
(Sun Workstation)
, C
SC
UniSite-xpi User Manual
Host
+ T to
TRL