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Electronic Theatre Controls Inc

Expression 2/3 Line Remote Macros

The Expression 2.3 Line consoles provide eight remote macro inputs through the 25-pin connector on the back panel labeled Remote Go. A user-supplied remote device connects to the console via a 24 AWG, aluminum-shielded, multi-conductor cable with one twisted pair designated for each switch (Belden 9507 S-R PCV Insulated or Alpha 5477 80 Deg. C 300 V PVC). The cable connector at the remote device will vary depending on the device itself.

Console connector  Remote connector  
DB-25 female   Connector type depends on unit

Pin  Function  

1  -Macro 1,901
2  -Macro 1,902
3  -Macro 1,903
4  -Macro 1,904
5  -Macro 1,905
6  -Macro 1,906
7  -Macro 1,907
8  -Macro 1,908
9  N/C
10  Ground
11  + 12Vdc
12  N/C
13  N/C
14  +Macro 1,901
15  +Macro 1,902
16  +Macro 1,903
17  +Macro 1,904
18  +Macro 1,905
19  +Macro 1,906
20  +Macro 1,907
21  +Macro 1,908
22  N/C
23  Ground
24  + 12Vdc
25  N/C

The Three Ways to Wire

(#1 is most typical way of wiring.  Remote Macro also requires ribbon cable and chips in Facepanel PCB.)1)

Connect all -Macro pins (pins 1-8) to ground (pin 10) and switch the leads connecting the +Macro pins (pins 14-21) to +12 Vdc (pin 24).2)

Connect all +Macro pins (pins 14-21) to the +12 Vdc pin (pin 24) and switch the leads connecting the -Macro pins (pins 1-8) to the ground (pin 10).3)
Provide your own power supply that generates a 12 Vdc potential between the +Macro and -Macro pins and switch either of these leads.

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