Studer D21m Product Information

D21m System
D21m Modules 6-7Date printed: 25.09.07
Jumpers: Level (Ch1...8) Two positions each: 15 dBu (factory default) or 24 dBu.
LEDs: SIGNAL 1...8 For each of the eight channels a green
LED indicates if input signal is present;
its brightness is a rough indication of the signal level.
Alignment: RA1...8 The trimmer potentiometers are factory aligned for 0 dB gain of the “Trim”
stage in the block diagram on the left.
Set jumper to 15 dBu or 24 dBu. Feed an analog signal with a level of +6 dBu
or +15 dBu, respectively, to one of the analog inputs. Measure the level on a
digital output. Adjust the level with the corresponding LEVEL trimmer poten-
tiometer to –9 dB
FS
. If a different input sensitivity has to be adjusted, select
the desired range with the jumper and use the LEVEL trimmer potentiometer
to adjust to the desired level.
Repeat this alignment for all inputs.
Connector Pin Assignment: (25-pin D-type, female)
Pin Signal Pin Signal
1 CH 8 in + 14 CH 8 in –
2 CH 8 in GND 15 CH 7 in +
3 CH 7 in – 16 CH 7 in GND
4 CH 6 in + 17 CH 6 in –
5 CH 6 in GND 18 CH 5 in +
6 CH 5 in – 19 CH 5 in GND
7 CH 4 in + 20 CH 4 in –
8 CH 4 in GND 21 CH 3 in +
9 CH 3 in – 22 CH 3 in GND
10 CH 2 in + 23 CH 2 in –
11 CH 2 in GND 24 CH 1 in +
12 CH 1 in – 25 CH 1 in GND
13 n.c.
Level Ch 1
Ch 1
Ch 3
Ch 2
Ch 4
Ch 5
Ch 7
Ch 6
Ch 8
Level Ch 3
Level Ch 5
Level Ch 7
24 dBu 15 dBu 24 dBu 15 dBu
Level Ch 2
Level Ch 4
Level Ch 6
Level Ch 8
1
Solder/Crimp View
(or Socket View)
13
25
14

Studer D21m Specifications

General

Brand	Studer
Model	D21m
Category	Recording Equipment
Language	English