QSC Audio DCM 30D Digital Input Pinout, Hearing Impaired, Output Level, dBu Ohms MVrms ±5%

Connections (continued)

DIGITAL INPUT Pinout

Configuration: 25-pin SubD male to 25-pin SubD male.

Pin # Signal Description

1(not used)

2(not used)

3(not used)

4(not used)

5(not used)

6(not used)

7AES1 (L/R) OUT +

8AES3 (Ls/Rs) OUT +

9Chassis Ground

10X1/2 OUT +

11Chassis Ground

12(not used)

13(not used)

14Chassis Ground

15AES1 (L/R) OUT -

16AES3 (Ls/Rs) OUT -

17X1/2 OUT -

18Chassis Ground

19(not used)

20(not used)

21AES4 (Bsl/Bsr) OUT -

22AES4 (Bsl/Bsr) OUT +

23AES2 (C/SW) OUT -

24AES2 (C/SW) OUT +

25Chassis Ground

DIGITAL INPUT

Hearing Impaired

The Hearing Impaired output signal is available on the screw terminal connector on the rear of the DCM. The output signal is similar to levels that are output from a standard CD player.

Output Level	Impedance
-11.8 dBu	50 ohms
(200 mVrms)	(±5%)

Use balanced audio connections and high-quality, shielded, balanced audio cable for interconnecting the DCM and Hearing Impaired equipment. Balanced connections are less prone to noise pick-up than unbalanced connections.

Connect other end of cable according to equipment manufacturer’s instructions.