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To Screen Or Not To Screen...


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Guest old-hand
Posted
no worries

I remember a topic about this from year ago or so and someone produced details from Yuasa or powersonic etc saying marker pen was not OK but don't have 1st hand knowledge, hence question.

I bought 2 dyno machines and it looks better and comes in handy for labelling devices and other stuff too

Don't date when come into stock though just rotate and (since very recently) recharge after 3 months if still on the shelf.

ISO not worked to?

Date in stock number, the date installed.

You Gold?

PS 3 months...................

falling over here laffing

Posted

gold no, ISO no.

new goes on the shelf after existing from shelf go in van.

don't buy what's still on the shelf.

not running a fleet of vans here guys.

laugh all you like bovril cube man

Guest old-hand
Posted
We date them when they come in cos its a requirement and so we can rotate them. However if you don DATE them big C, how do work out the rotation?

DATE

Get it, DATED.

Did I miss something...................

Oh yeah a DATE it arrived, was fitted and oh yeah a DATE.

Guest old-hand
Posted
I don't "need" to date anything.

I have a system and it works for me.

Nothing else matters.

Stop mattering, i`m not bothered now.

Posted

1. Screened cable can increase capacitance, shortening the communications bus (wiring between panel and keypads/modules) distance, so it is not recommended to use this unless it is specified by the manufacturer.

2. It is also not recommended to cut or wrap spare wires, rather connect these to the common or negative connections (on both sides until these are required). The reason for this is related to induction.

n

Posted

As has been mentioned screened should not be required. in theory on rs485 on the correct UTP cable.

But while there sometimes can be issues with screened (ie increased cap etc) it usually causes softer square waves or slow slopes.

But noise can also be an issue etc.

In theory a cat5 would be ideal with all spare cores grounded. However id still use a screened beldon any day over cat 5.

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