RS-232 Device Port Configuration (Parameter #1246, SSI #F8h 04h DEh)

This option allows users to select the devices to be attach to the NCR 7895, and their port assignments.

The following are the available configurations or options:

  • *0—Aux 1 Sensormatic, and Aux 2 Scanner
  • 1—Aux 1 Dual Cable Scale, and Aux 2 Scanner
  • 2—Aux 1 Sensormatic, and Aux 2 Dual Cable Scale
  • 4—Aux 1 Third Party Scale, Aux 2 Sensormatic
  • 5—Aux 1 Sensormatic, and Aux 2 Disabled
  • 6—Aux 1 Dual Cable Scale, and Aux 2 Disabled
  • 7—Aux 1 Third Party Scale, and Aux 2 Disabled
  • 8—Aux 1 Disabled, and Aux 2 Scanner
  • 9—Aux 1 Disabled, and Aux 2 Dual Cable Scale
  • 10—Aux 1 Disabled, and Aux 2 Sensormatic
  • 11—Aux 1 Disabled, and Aux 2 Disabled

Changes to this parameter do not take effect until the next power cycle (power cycling does not apply to 123Scan). Perform one of the functions below after scanning a device port parameter:

  • Cycle power to the scanner (disconnect and then reconnect scanner cable).
  • Use the NCR 7895 Reset button (a button combination to reboot the NCR 7895).

When selecting any of the device port configuration options, ensure that the devices connected to the NCR 7895 correctly match the devices defined for the option. Turning on the NCR 7895 with connected devices that do not match the option can result in communication failures.

Example

If option 4 is scanned, only a third party scale should be connected to the Aux 1 port, and a Sensormatic EAS should be connected to the Aux 2 port.

To ensure successful operation, follow these steps:

  1. Power off the NCR 7895.
  2. Disconnect all RS-232 devices (RS-232 scanner, Sensormatic, and others).
  3. Power on the NCR 7895.
  4. Scan the appropriate bar code option that matches the intended configuration.
  5. Power off the NCR 7895.
  6. Connect the appropriate devices.
  7. Power on the NCR 7895.

The following table provides the device specific default values (inherited defaults).

DeviceBaudData BitsStop BitsParity

Scanner

9600

8

1

None

Sensormatic

9600

8

1

None

Dual Cable Scale: SASI Protocol

9600

7

1

Even

Dual Cable Scale: DIGI Protocol1

9600

7

2

Even

Dual Cable Scale: ICL Protocol1

9600

7

1

Even

Third Party Scale

N/A

N/AN/AN/A
Note

The details on selecting scale protocols, refer to RS-232 Auxiliary Port Scale Protocol (Parameter #1247, SSI #F8h 04h DFh).

Scan one of the following bar codes to configure the RS‑232 device ports. By default, this parameter is set to Aux 1 Sensormatic and Aux 2 Scanner.