18 Installation
STEP 2 – Physical Connections
Depending on the types of serial interfaces of your devices, you may need one or more
“null modem” adapters to communicate properly.
First, refer to the Common Setups diagrams later in this chapter. If one of these setups
matches your needs, make the connections as shown in the diagrams by referring to
the Host/Printer Connection. Each cable connection in the diagram (the lines with
arrows on each end) has a letter next to it.
The letters correspond to the letters in the Host/Printer Connection Guide. If these
setups don’t apply, choose the connections in the Host/Printer Connection Guide
that are appropriate.
Your physical connections are now complete.
STEP 3 – Number of Sessions Selection
This step requires setting a selection in the Setup menu to configure the terminal for
single or dual session mode.
If you’ve connected two host cables (A or C
AND
B or D), and you wish to run in
“dual session” mode, enter Setup (Ctrl-Scroll Lock on a PC keyboard or F3 on an
ANSI keyboard) and set “Sessions=Two” in the Quick (F1) menu. For single host
operation, this setting should already be set at “One” since this is in the default state.
STEP 4 – Linking Ports to Sessions
If you have selected “Sessions=One,” then you can skip to Step 5. If you have
selected “Sessions=Two,” there are four designations to make. This step will be used
later in Step 7.
First, you have to decide which serial port will be assigned to your first host in Session
1 (either EIA, Aux, or None). Now, decide which port will be used for your second
host in Session 2 (EIA, Aux, or None).
The same port shouldn’t be used as the host port for
both sessions.
Then, determine which port will be used as the printer port in Session 1
(EIA, Aux, Parallel, None). Do the same for the printer option in Session 2. It is not
general practice to assign the host port in one session as the printer port in another
session, but this can be done if desired.