Omron NT31 NT31C manual Rear View

Names and Functions of Parts Section 2-2

Rear View

Battery cover

The battery is secured underneath this cover.

GR terminal Grounding terminal to prevent malfunction due to noise.

Power input terminals Connect the power to the NT31/NT31C at these terminals.

Reset switch (inside the cover)

Used to initializes all the statuses of the NT31/NT31C. However, registered data such as screen data, and memory switch settings, retain their statuses before initialization.

Expansion interface connector (under the label)

When using an expansion interface unit such as a memory unit, peel off the label and connect it here.

24V DC

PRINTER PORT B PORT A

Warning label

Backlight unit (inside the cover)

Open the cover to reveal the backlight. The backlight is off while the cover is removed. Tighten the cover screw securely.

Serial port A connector

Connect the cable for connection to the host or Support Tool here. A bar code reader can also be connected here. This is a 9-pin connector for RS-232C use only.

Serial port B connector

Connect the cable for connection to the host here. Depending on the setting made at the NT31/NT31C system menu, either RS-232C or RS-422A/485 may be used. This is a 25-pin connector.

It is not possible to use RS-232C and RS-422A/485 at the same time.

Printer connector

Connect the printer cable here. Output conforms to Centronics specifications.

Note Confirm system safety before turning the power ON/OFF or resetting.

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