Date printed: 24.01.12
27
D21m System
*
§
§§
**
*
§
§§
**
*
§
§§
**
*
§
§§
Important:
Do NOT connect *
and
**
or §
and
§§ simultaneously
on the same channel!
* = Connect for Return Level –9 dB
** = Connect for Return Level +9 dB
§ = Connect for Send Level +9 dB
§§ = Connect for Send Level –9 dB
Solder Pads:
**
Ch 1
Ch 2
Ch 3
Ch 4
Solder Pads
Nominal send/return levels are +15 dBu for full scale modulation. These levels
may be boosted or cut by 9 dB (i.e., set to +6 dBu or +24 dBu) individually
per channel and for send and return, refer to the illustration above.
Please note that the corresp9 dB and –9 dB solder pads must not be
connected simultaneously.
Connector Pin Assignment
4× BALANCED LINE IN AND OUT
(25pin D-type, fem., UNC 4-40 thread)
1
Solder/Crimp View
(or Socket View)
13
25
14
Pin Signal
Pin Signal
1
CH 4 out +
14 CH 4 out –
2
CH 4 out GND
15 CH 3 out +
3
CH 3 out –
16 CH 3 out GND
4
CH 2 out +
17 CH 2 out –
5
CH 2 out GND
18 CH 1 out +
6
CH 1 out –
19 CH 1 out 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.
