Fostex AC2496 owner manual Extension example after installing a Model

Extension example after installing a Model 5045

The 8 analog-input channels of the AC2496 can be extended to 16 channels by installing an optional Model 5045 8ch A/D card. Such an installation enables 24 track simultaneous recording by using a D2424 as shown in example below.

• Connecting example for 24 track simultaneous recording

This is an example of installing a Model 5045 in an AC2496. Twenty four channels of analog signals can then be recorded simultaneously. In this example, analog signals (1-8) from analog mixer 1 are input to ANALOG INPUT 1-8, while signals from analog mixer 2/3 (1-8, 9-16) connected to the AC2496 are converted to adat digital signals and applied to DATA INPUT 9-16 and 17-24. Using this procedure, it is possible to simultaneously record 24 tracks.

Analog Mixer-1

Analog signals (1-8)

ANALOGNALOGINPUTINPUTBALANCEB LANCE[ +4dBu[ +4dBu] / UNBALANCE] / UNB LANCE[ -10dBV[-10dBv] ]								ANALOGANALOGOUTPUTOUTPUTBALANCEBALANCE[ +4dBu[ +4dBu] / ]UNBALANCE/ UNBALANCE[ -10dBv[-10dBV] ]
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
						INPUT	OUTPUT
					75Ω
					ON	OFF
									AC-IN
			DATA				MIDIMIDI		SCSISCSI
	INPUT			OUTPUT		INPUT	OUTPUT	THRU	CAUTION
24 - 17	16 - 9	8 - 1	24 - 17	16 - 9	8 - 1
									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.

(Master)

adat digital signal (9-16)

adat digital signal (1-8)

WORD clock

(Slave)

Analog Mixer-3 Analog Mixer-2

• Setup of the AC2496

The same as the previous example, when using an AC2496 as an Analog-adat converter, it must be setup as follows:

If WORD clock is input from a D2424, the CLOCK SW must be set to "WORD" and the ter- minate SW to "ON."

If an 8 BUSS OUT mixer is to be connected, set the ANA- LOG INPUT MODE SW to "1- 8."

Set to "ADAT-48" or "ADAT- 44.1" to match the D2424 sampling frequency.

Set the AC2496 reference level to match the output level (bal- anced/unbalanced line) of ex- ternal equipment connected such as an analog mixer.

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