Appendix C - Mechanical Installation
54
Termination helps to ensure clean data signals are transmitted through the network
wiring. Termination is applied to the end-of-line (EOL) HandPunch in the network daisy-
chain. The factory default setting is for EOL termination to be disabled – switches 1 and 2
OFF. Refer to Figure 12-8 on page page 53 for switch ON/OFF positioning.
•
To enable EOL termination at a HandPunch, both switches 1 and 2 must be ON.
•
To disable EOL termination at a HandPunch, both switches 1 and 2 must be OFF.
EOL Termination must be enabled for:
•
A single HandPunch terminal installation.
•
In a Modem to PC network the HandPunch terminal with the Modem option (for
communication with the host computer).
The factory default setting and for standard operation, switch 3 must be OFF.
•
Switch 3 must always be OFF.
The erase memory function can perform either or both of the following:
•
Erase a HandPunch’s configuration data.
•
Erase a HandPunch’s user database and transaction buffer.
The factory default setting (and normal operation setting) is for switches 4 and 5 to be
OFF, retaining memory.
If the HandPunch is equipped with the battery backup option, remove shunt J7 in front of
the DIP switch array (see Figure 12-4 on page page 50) before proceeding. Replace shunt
J7 after completion of the following steps.
Perform the following steps to erase the configuration data but retain the user database.
1. With system power OFF, set switch 4 ON.
2. Turn system power ON and wait for HandPunch boot information to appear on the
display.
3. Turn switch 4 OFF.
End of Line
Termination
Communication
Method
Erasing
HandPunch
Memory
NOTE
Erasing the
HandPunch
Setup
