Common controller
The model 4020 from Zetron is a 20-channel common controller that supports as many as six series 4000 operating positions including the model 4217NT dispatch
The model 4020 from Zetron is a 20-channel common controller that supports as many as six series 4000 operating positions including the model 4217NT dispatch workstation, 4118 rack-mount button console and the 4018 desktop button console. The architecture and feature set of the 4020 are identical to that of the 4048. WWW.ZETRON.COM OR 425-820-6363
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