Patton electronic 457B Operation, Power UP, Port Status LED Indicators, Appendix a Specifications

5.0 OPERATION

Having connected the host and terminal cables to the Model 457B, you are ready to operate the unit. This section tells how to power the unit, and how to read the port status LED indicators.

5.1 POWER UP

There is no power switch on the Model 457B. To apply power to the unit, plug the AC adapter into one of the two rear jacks (see figure 5, below) and then into a wall outlet. The front panel "Power" LED should glow yellow when power is applied. The port status LEDs should be off if the host and terminals are not yet powered up.

Power Jacks

Figure 5. Rear panel of Model 457B, showing power jacks

5.2 "PORT STATUS" LED INDICATORS

As figure 6 (below) illustrates, there is a status LED for each port on the Model 457B. Having followed the normal start-up procedures for your system, the host port LED should glow faintly red and each active terminal port's LED should glow faintly green. Inactive ports should not show any LED activity. When data activity is occurring on a port, its LED should glow brightly. Failure of a particular port's LED to behave as described here may indicate a problem with the cable connection or with the host/terminal hardware.

Figure 6. Front panel of Model 457B, showing LED indicators

APPENDIX A

SPECIFICATIONS

Connectors: Host port—terminal block and RJ-45 jack

Terminal ports—RJ-45 jack

Applicable Hardware: IBM AS/400 and System 34/36/38 compatible hosts and terminals

Range: 2250 ft (24 AWG unshielded twisted pair) between the hub and each connected device; maximum host-to-terminal range is 4500 ft

Transmission Protocol: Transparent to user

Link-to-Data Isolation: 500 Volts RMS

Operating Temperature: 40°F to 130°F (5°C to 54°C)

Storage Temperature: 0°F to 185°F (-17°C to 85°C)

Humidity: Up to 95% non-condensing

Dimensions: 7.25"w x 1.6"h x 3.75"d

Weight: 0.9 lb

Power Requirements: Regulated 5VDC @ 250 mA

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