Table 5-2. Performance Test for Power Supplies TF610.9-TF1927.7 Operating Voltages

T.O. 31W2-4-206-2

TM 11-5805-622-14/1

5-6. PERFORMANCE TESTS.

5-7. Tables 5-2 through 5-10 contain performance

tests for the Orderwire-Delay Equalizer Bay compo-

nents.

5-8. When performing the test procedures that fol-

low, care must be taken relative to dbm measure-

ments. As defined, dbm is a power ratio relative to

one milliwatt across a 600 ohm impedance. When

ture of 70F will not effect the performance of the

measuring voltage in db the impedance must be

equalizers.

known in order to convert to dbm. The db scales of

5-10. DELAY EQUALIZER PERFORMANCE TEST.

the W&G (Wandel and Golterman) test equipment

shown in figure 5-1, may be read directly only when

measuring across a 600 ohm impedance. For mea-

5-11. In order to test the overall performance of the

Delay Equalizers, the Envelope Delay Distortion of

surements across other impedances, corrections for

the W&G equipment may be calculated in accordance

the Cable Subsystem has to be measured by means of

the Delay Measuring Set LD-2 (W&G) from Interface

with instructions in the a--plicable manuals.

to Interface in both transmit directions as shown in

5-9. The Delay Equalizers in both terminals are de-

figure 5-5. This can only be accomplished when the

Cable Subsystem is inoperative (no traffice on any

signed to meet the amplitude and envelope delay dis-

tortion requirements of the entire cable subsystem

channels).

Table 5-2. Performance Test for Power Supplies TF610.9-TF1927.7 Operating Voltages

PRELIMINARY INSTRUCTIONS: 1. Use Siemens MSLDR830A for the following tests.

2. Connect test cord P-5741 to the range terminal on the Voltmeter.

CONTROL SETTING

PERFORMANCE

AND EQUIPMENT

POINT OF TEST

OPERATION OF TEST EQUIPMENT

STEP

STANDARD

OPERATION

+212 Volts DC

Anode Voltage

A on Power

Set Voltmeter mode selection switch

+2%

Supply TF610.9

to mA-/V- and connect the 300V

terminal to Jack A on Power Supply

TF610.9

20 volts AC +2%

Heater Voltage

H on Power

Set Voltmeter mode selection

Supply TF610.9

switch to and connect 30V termi-

n a l s to test jack H on Power Supply

TF610.9

20 volts AC

Normal

S1 on Power

Set Voltmeter mode selection

+10%

switch to and connect the 30V

Supply TF610.9

terminals to test jack S1 on Power

Supply TF610.9

24 Volts DC

Normal

Set Voltmeter mode selector to

S2 on Power

+15%

Supply TF610.9

mA-/V- and connect the 30V ter-

minals to the S2 test jack on the

Power Supply TF610.9

5-2