Fostex AC2496 owner manual Application examples as an Analog-adat converter, Master, Slave

Application examples as an Analog-adat converter

As an example in using AC2496 as an analog-adat converter, here it is connected to a Fostex digital multirecorder D2424 to enable 16 track simultaneous recording. The analog mixer in the connecting example below will be for 8 BUSS OUT.

• Connecting example for 16 track simultaneous recording

This example demonstrates a standard AC2496 and 16 channels of analog signals being recorded simultaneously. In this example, the analog signals (1-8) from analog mixer 1 are input to ANALOG INPUT 1-8, while the signals (1-8) from analog mixer 2 connected to AC2496 are converted to adat digital signals and input to DATA INPUT 9- 16 (or 17-24). Sixteen track simultaneous recording is possible with this procedure.

Analog Mixer-1

(Master)

4 3 2 1 12 11 10 9 8 7 6 5 4 3 2 1

																REMOTERS422
															REMOTE	100Ω	THRU
																ON OFF
8	7	6	5	24	23	22	21	20	19	18	17	16	15	14	13
						WORDWORD

				75Ω
				ON	OFF
								AC-IN
			DATA			MIDIMIDI		SCSISCSI
24 - 17	16 - 9	8 - 1	24 - 17 16 - 9	8 - 1	INPUT	OUTPUT	THRU	CAUTION
								RISQUE DE CHOC ELECTRIQUE
								AVIS: NE PAS OUVRIR
								WARNING:
								TO REDUCE THE RISK OF FIRE OR ELECTRIC
								SHOCK, DO NOT EXPOSE THIS EQUIPMENT
								TO RAIN OR MOISTURE.

WORD clock

adat digital signals

(Slave)

Analog Mixer-2

<CAUTION>

If it is to be connected to a digital re- corder -- a D2424 in this case -- having a WORD OUT port as shown in the ex- ample, it must always be connected to WORD IN of the AC2496 and WORD clock signals input from the digital re- corder.

Also, if WORD clock is to be input to AC2496, be sure to set the recorder clock in the "asynchronous mode." Refer to the recorder Manual for details. If WORD clock cannot be input, set the recorder in the "synchronous mode" and the AC2496 CLOCK switch to "INT."

<Notes when making connections>

When connecting external equipment to AC2496, be sure to switch off power to AC2496. Noise could be created if cables are plugged in or out while the power is on.

• Setup of the AC2496

If the AC2496 is to be used as an analog-adat converter as shown in the previous example, set it up as explained in the following.

When WORD clock is input from the D2424, set the CLOCK SW to "WORD" and the terminator switch to "ON."

If connecting an 8 BUSS OUT mixer, set the ANALOG IN- PUT MODE SW to "1-8."

Set this to "ADAT-48" or "ADAT- 44.1," matching the D2424 sampling frequency.

Set the AC2496 reference level to match the output level (bal- anced or unbalanced line) of any external equipment con- nected, such as an analog mixer.

<Notes at setup>

Be sure to switch off power to AC2496 before manipu- lating each selector switch of the AC2496. If the switches are manipulated with the power switched on, it could create noise.

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