Patton electronic NetLink-E1 2715 user manual Power Connection, LED Descriptions, Txd, Rxd

4.3 POWER CONNECTION

The Model 2715 offers three ways to supply external power: AC power, DC power and interface power.

4.3.1 Using the AC Power Supply (100-240VAC)

The Model 2715 uses a 5VDC, 2A universal input 100-240VAC, power supply (center pin is +5V). The universal input power supply is equipped with a male IEC-320 power entry connector. This power sup- ply connects to the Model 2715 by means of a barrel jack on the rear panel. There are a variety of international power cords available for the universal power supply. The Model 2715 powers up as soon as it is plugged into an AC outlet–there is no power switch.

4.3.2 Supplying DC Power

You may bypass the DC wall adapter and supply DC power directly to the NetLink E1™ power supply jack. DC power supplied must be +5VDC ±5%, 300mA minimum, center positive, and can be supplied via a barrel type plug with 2.1/5.5/10mm I.D./O.D./Shaft Length dimen- sions.

4.3.3 Supplying Power via pin KK

You may also supply DC power directly to pin KK of the V.35 inter- face. DC Power supplied to pin KK must be +5VDC ± 5%, 300mA min- imum.

NOTE: Model 2715 is factory configured to accept power from the enclosed DC wall adapter (See Sections 4.3.1 and 4.3.2 above). If you wish to supply power via pin KK on the interface, you must change the setting of the power supply jumper on the printed cir- cuit board See Appendix E. All power sources must be SELV (Circuit, Safety Extra Low Voltage) specified. (See CENELEC EN60950, Section 1.2.8.5)

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5.0 OPERATION

Once the Model 2715 is installed and configured properly it is ready to place into operation. This section describes the function of the LED indicators, and the use of the loopback and pattern test modes.

5.1 LED DESCRIPTIONS

The Model 2715 is equipped with seven LED indicators that monitor the status of communication. Figure 4 (below) shows the location of the LEDs on the Model 2715 front panel.

Model2715

	Figure 4. Top of Model 2715, Showing LED Indicators
TXD	When the unit sends a one, the TXD LED is
	turned on. When it sends a zero, the TXD
	LED is turned off. Moreover, the TXD LED is
	active only in active DS0 channels. In inac-
	tive channels, the TXD LED is off.
RXD	When the unit receives a one, the RXD LED
	is turned on. When it receives a zero, the
	RXD LED is turned off. Moreover, the RXD
	LED is active only in active DS0 channels.
	In inactive channels, the RXD LED is off.
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