
ORIGIN Installation Guide
Making Connections
25
Master Section DB-25 Pinouts Cont'd
**NOTE: Patch Reference on following tables only applies if using suggested standard patch layout on Page 26
Mix Bus INS RTN (Insert Return) and TB/LM (Talkback/Listen Mic) Line Inputs
25 Way F D-type
Main Ins Rtn
Patch
Cct#
Hot
Cold Scrn
Talkback/Listen
Ref**
1
24
12
25
Main Ins Rtn L
L33
2
10
23
11
Main Ins Rtn R
L34
3
21
9
22
N/C
L35
4
7
20
8
N/C
L36
5
18
6
19
TB Line In
L37
6
4
17
5
Listen Line In
L38
7
15
3
16
N/C
L39
8
1
14
2
N/C
L40
9
UTILITY
9-Way F D-type
Pin
Red Light Relay
1
Normally Open Contact R1
2
Common
3
Normally Closed Contact R1
4
Normally Open Contact R2
5
Common
6
Normally Closed Contact R2
7
N/C
8
N/C
9
N/C
R1 and R2 are separate relays, both operated by the Red Light Switch