Manufacturer: Doepfer 
Module Name: A-151 Quad Sequential Switch (V2) 
Module Type: Switch 
Production Status: In Production 
Module Width (hp): 4 
Module Depth (mm): 35 
MSRP (USD): $80.00 
+12V Current (mA): 40 
-12V Current (mA): 40 
+5V Current (mA): 0 
Information URL: http://www.doepfer.de/a151.htm  Visit
Date Announced: N/A 
Date Introduced: 04/01/2005 
Date Discontinued: N/A 
About the A-151 Quad Sequential Switch (V2) by Doepfer
(Manufacturer's description:)

Module A-151 (Quad Sequential Switch) is like an electronic four-position rotary switch.

It includes trigger and reset inputs, four in / outputs, and a common out / input. Each time a pulse is received at the trigger input socket, the common out / input is connected to the next in / output.