Fixed 5 V Power Supply Operation

__________________________________________________________________________OPERATING INSTRUCTIONS

a. If the negative polarity of the equipment or circuit being powered is also the chassis or common, it may be grounded to earth by strapping the black (-) terminal to the green (GND) terminal as shown in Fig. 9A.

b. Similarly, the positive polarity can be grounded by strapping the red (+) terminal to the green (GN D) terminal as shown in Fig. 9B.

c. If an earth ground reference is not required, the configuration of Fig. 9C may be used. The scheme in Fig. 9C should also be used where it is not known whether the chassis is common with either the positive or negative polarity.

d. If the chassis or common of the equipment being powered is separate from both the positive and negative polarity power inputs, use the connection shown in Fig. 9D.

9.Observe proper polarity. If the circuit being powered is not equipped with reverse polarity protection, damage to the circuit can result from reverse polarity. Use color coded hook-up leads, for convenience in identifying polarity, red for (+) and black for (-).

10.Make sure that the hook-up leads offer sufficient current capability and low resistance between the power supply and the circuits being powered. The hook-up leads supplied with the power supply are rated for 4 amps.

The FIXED 5 V supply provides a 4 amp current capacity. The supply is ideal for use with TTL circuits.

1.Turn off the power supply and the equipment to be powered during hook-up.

2.Connect the positive polarity of the device being powered to the red (+) terminal of the FIXED 5 V supply.

3.Connect the negative polarity of the device being powered to the black (-) terminal of the FIXED 5 V supply.

4.Fig. 10 illustrates the grounding possibilities of the FIXED 5 V supply.

a.If the negative polarity of the equipment or circuit being powered is also the chassis or common, it may be grounded to earth by connecting the black (-) terminal to the green (GND) terminal as shown in Fig. 10A.

b.Similarly, the positive polarity can be grounded by connecting a jumper between the red (+) terminal and either green (GND) terminal as shown in Fig. 10B.

c.If an earth ground reference is not required, the configuration of Fig. 10C may be used. The scheme in Fig. 10C should also be used where it is not known whether the chassis is common with either the positive or negative polarity.

d.If the chassis or common of the equipment being powered is separate from both the positive and negative polarity power inputs, use the connection shown in Fig. 10D.

5.Observe proper polarity. If the circuit being powered is not equipped with reverse polarity protection, damage to the circuit can result from reverse polarity. Use color coded hook-up leads, such as the sets supplied with the power supply, for convenience in identifying polarity, red for (+) and black for (-).