Patton electronic 2135C user manual DC Power, Power-up 2121 via DB-15 Connector on Pin

4.3.2 DC Power

Supply DC power directly to the power supply jack. DC power supplied must be +5VDC ±5%, 500mA minimum, cen- ter positive, and can be supplied via a barrel type plug with 2.1/5.5/10mm I.D./O.D./Shaft Length dimensions. For this powering option, set J3 to position 7 and 8 as shown in figure 4 (factory default).

The 36-60 VDC DC to DC adapter supplied with the DC version of the Model 2121/2135C plugs in a DC source (nom- inal 48VDC) and plugs into the barrel power supply jack on the rear of the 2121/2135C. See Figure 5 below. For this powering option, set J3 to position 7 and 8 as shown in figure 4 (factory default).

DC power (+5VDC) can also be supplied via pins 14 or 15 on the DB-15 connector for the Model 2121. DC power (+5VDC) can also be supplied via pins KK or NN on the M/34 connector for the Model 2135C.

To Power	To -48VDC
Supply Jack	Source
	+ Vin
	- Vin

Figure 5: Connecting DC Power to the 2121/2135C DC Power Supply.

WARNING! There are no user-serviceable parts in the power supply section of the Model 2121/2135C. For more information, please contact Patton Electronics Technical sup- port at (301)975-1007, via our web site at http://www.patton.com, or by e-mail at support@patton.com.

Power-up 2121 via DB-15 Connector on Pin 15

Place strap position 1 and 2 on J3 for DC power supply. See figure 6 below.

Power-up 2135C via M/34 Connector on Pin KK

Place strap position 1 and 2 on J3 for DC power supply. See figure 6 below.

Figure 6. Strap positions 1 and 2 on J3

Power-up 2121 via DB-15 Connector on Pin 14

Place strap position 3 and 4 on J3 for DC power supply. See figure 7

below.

Power-up 2135C via M/34 Connector on Pin NN

Place strap position 3 and 4 on J3 for DC power supply. See figure 7 below.

Figure 7. Strap positions 3 and 4 on J3

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