Memory; Peripheral Units And Option Units; Barcode Reader Connection; Isolation Unit - Pro-face GP4000M Series Installation/Replacement Manual

2.8 Memory

GP-4301TM does not have SRAM, but uses a part of application memory as a backup
area. Data in the backup area is retained even after power off or reset of GP-4301TM
in the same way as SRAM. The functions possible for backup on GP-4301TM are as
follows:
- Alarm History (Up to 768)
- Recipe (Filing data)
- Brightness/Contrast values
* For the functions above, data is saved in the backup area at the time of 'Save'.
* Sampling and clock data is not backed up.

2.9 Peripheral units and option units

2.9.1 Barcode reader connection

GP-4301TM is not equipped with a tool port. A barcode reader connected from the
tool port on GP-37W2 cannot be used. However, GP-4301TM allows you to connect
a barcode reader on its USB interface (Type A) or its serial interface.
For the models GP-4301TM supports, see [OtasukePro!]
(http://www.pro-face.com/otasuke/qa/3000/0056_connect_e.html).
And if you connect a barcode reader to GP-4301TM, be sure to supply power to the
barcode reader from an external power source (such as a USB hub supporting
self-power supply). When no power is supplied from an external power source, if
the barcode reader consumes more electricity than expected, operation of
GP-4301TM will become unstable and reset may be activated.

2.9.2 Isolation Unit

The isolation unit for GP-37W2 (CA2-ISOALL232-01, CA2-ISOALL422-01) cannot
be used for GP-4301TM.

2.10 Power Connector

The power connector on GP-4301TM is a screw lock terminal block. If you replace
GP-37W2, change the power cable.
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