Group: DynoMotion	Message: 11707	From: cnc_machines	Date: 6/16/2015
Subject: SnapAMP outputs

Tom,

The first 14 pins of the snapamp are LVTTL. What does this stand for? Can these be used to operate an external relay?

Thanks,

Scott

Group: DynoMotion	Message: 11708	From: TK	Date: 6/16/2015
Subject: Re: SnapAMP outputs

Hi Scott,

It stands for Low-Voltage-Transistor-Transistor-Logic which is one of the most well known logic interfaces. Basically the output will be less than 0.4V when low and greater than 2.8V when high driving (sinking or sourcing) a load less than 16ma.

This is usually too little voltage and current to drive a relay coil directly but may drive some solid state relays which typically have something like and LED as an input.

HTH

Regards

On Jun 16, 2015, at 4:25 PM, cnc_machines@... [DynoMotion] <DynoMotion@yahoogroups.com> wrote:

Tom,

The first 14 pins of the snapamp are LVTTL. What does this stand for? Can these be used to operate an external relay?

Thanks,

Scott

Group: DynoMotion	Message: 11709	From: Russ Larson	Date: 6/17/2015
Subject: Re: SnapAMP outputs

Scott,

Low Voltage TTL, basically 3.3V TTL signals.

Russ

From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com]
Sent: Tuesday, June 16, 2015 3:25 PM
To: DynoMotion@yahoogroups.com
Subject: [DynoMotion] SnapAMP outputs

Tom,

The first 14 pins of the snapamp are LVTTL. What does this stand for? Can these be used to operate an external relay?

Thanks,

Scott

Group: DynoMotion	Message: 11710	From: cnc_machines	Date: 6/17/2015
Subject: Re: SnapAMP outputs

Got it thanks. Basically a separate breakout board is needed for driving relays.