Bellbox Tamper

[rodime]

Hello,

I have wired the Cequra 2 bellbox with series tamper connection using a terminal block to the case tamper as per instructions on the website except that The 1KOhm resistors are on the comfort panel instead of the bellbox.  I have enabled engineer test mode therefore bypassing tamper and for the case tamper, correctly, no alarm is triggered when removing the case.  However, if I try to remove the bellbox cover, the bellbox alarm is triggered although the internal alarm is not.    I tried physically bypassing the tamper by connecting a wire between the tamper block terminals on the comfort board (existing connections still intact) and I was then able to remove the bellbox cover without the bellbox going off.

Everything else works fine, if not in engineer test mode, both the internal alarm and the bellbox siren go off if I try to remove the comfort case panel or bellbox cover.

I had thought that engineer test mode would disable tamper for comfort cover AND the bellbox, but this doesn\'t seem to be the case.  It\'s not a major problem to simpy physically bypass the tamper, but the manual implies that I should not have to with engineer test mode.

Am I missing something?

[slychiu]

When you say the Bellbox alarm goes off, perhaps that is generated by the Cequra by itself and not from Comfort, which means that it is not controlled by Comfort?

[rodime]

No, initially I thought that, but it happens regardless of whether the bellbox internal battery is attached.  Which is what is really strange.  The trigger must be coming through the comfort panel, but the internal alarm does not go off, just the bellbox.

[slychiu]

You are connecting the bellbox tamper and case tamper in series to the tamper input. Hence Comfort cannot know if the case tamper or Bellbox tamper is open, so it is not possible that Comfort will trigger an alarm when you open the bellbox but bot do so when you open the case

[rodime]

I agree in theory, yet the case tamper is not causing an alarm but the bellbox tamper is when in engineer test mode.  The only way I am able to bypass the bellbox tamper sounding is to physically bypass the tamper by shorting the tamper terminals on the comfort panel.

Just to be sure I have the wiring correct:-

Comfort                   Bellbox
SRN-                        SIREN
STR-                        STROBE
TMPR                       TAMPER (via comfort panel tamper switch and terminal)

0V(TMPR)                HOLD OFF -
12VF                       HOLD OFF +

As per previous post, the comfort alarm is not triggered, neither is tamper registered in the log, only the bellbox siren sounds, but does not if I short the comfort tamper terminals.  Anyone else with a Cequra 2 seeing this?

[slychiu]

I believe the Cequra bellbox checks its own tamper and sounds if it is broken. The Engineer Test mode will not prevent this from happening as it is not within Comfort\'s control, so you will have to continue to bypass it as you have been doing.
The only other alternative is to bypass that internal tamper and connect so that the tamper is only through Comfort. I cannot advise how to do that, perhaps the Cequra instructions will provide some info

[rodime]

ok.  Thanks