Not really used shuntlocks before incase they are forced open.

that's the whole point isn't it?

kick in the door and get intruder(access) off contact and confirmed from DT/PIR. I wouldn't use a shunt as keyswitch though, as per James.

We use them to start E/E, door gets kicked in, no entry started, instant alarm on contact, confirmed on hall pir

yep, best way.

that's the whole point isn't it?

kick in the door and get intruder(access) off contact and confirmed from DT/PIR. I wouldn't use a shunt as keyswitch though, as per James.

agreed.

would add protection to any vulnerable lock, (eg viper).

If you force the lock open. Ie operate the lock without the key for example pick it or drill it the no confirmed alarm.

plus & minus for all set/unset methods, site/risk dictates.

if your external prox on lock up shop gets vandalised eg.......

If you force the lock open. Ie operate the lock without the key for example pick it or drill it the no confirmed alarm.

Yes that is possible and for that reason we only use them to start entry time and still use tag. Use them in small sites usually where control equipment may be vulnerable