drvnbysound
Senior Member
I've seen it a few times on the system I installed earlier this year. The system had (2) XRFTW's and approx. 30 of the Elk 2-way sensors.
But I think believe that the Elk performs a smart negotiation between the tx and the sensors meaning that the sensor re-transmists with a stronger signal until it get an acknowledgement from the tx.DELInstallations said:I'd think the Elk RF is more susceptible as it "tunes" itself to maximize it's range, battery life and reception vs. a device like, say, an ITI/GE contact or the Honeywell 5816's. The Elk, by nature, isn't going to be transmitting at full signal output 99% of the time. Not faulting it, but it's the nature of the beast. The Elk transceiver is always going to be transmitting at it's maximum allowable output, it's just the nature of the device itself.
The other consideration, I know Elk used to publish the specs on the GE receiver and Honewell in regards to it's sensitivity and I'm willing to bet that the lack of antennas is also going to come into play with it's performance overall.
DELInstallations said:Not acceptable for any category cabling. Telco or general splicing, UR's and UY's are fine, but anything like TCP/IP is a no-no. You'd be better off using a jack/RJ combo or butt 2 jacks together (although in theory it does double the amount of untwist and can be pinged with a pentascanner).s
Usually it's not too noticeable if the bandwidth is slight, but if you have intensive bandwidth, it'll show it's head.
That may be true, but with RF, what works perfectly fine one day may have issues the next if anything environmental changes. Happens all the time with far more complex equipment (the company I work for/with installs RF BAS components and those have much more lenience and are more robust than Elk RF and they still occasionally glitch)mikefamig said:But I think believe that the Elk performs a smart negotiation between the tx and the sensors meaning that the sensor re-transmists with a stronger signal until it get an acknowledgement from the tx.
Mike.
mikefamig said:Thanks but I won't be convinced that the system is stable until I replace the keypad and maybe even re-install the M1TWA. I'll be moving forward slowly and carefully.
Mike.
DELInstallations said:That may be true, but with RF, what works perfectly fine one day may have issues the next if anything environmental changes. Happens all the time with far more complex equipment (the company I work for/with installs RF BAS components and those have much more lenience and are more robust than Elk RF and they still occasionally glitch)
DELInstallations said:Don't get another 212S.
Get something slightly better and more robust. While it's a nice device per se, it's just as easy to install a supervised power supply with enough headroom to support a large battery load and output power.
The Altronix ones I've referenced elsewhere would be what I'd suggest. I'm putting one in this weekend at a home I'm trimming out, 4A supervised with 16 PTC protected outputs/distribution board.
Only thing I can't do is drive an output and I need a hardwired zone for supervision, but it's a heck of a lot better way to fly than multiple 212S' (says the integrator with 2 in his house, on top of at least 3 other various supplies).
If you can scrounge an Altronix can, I'm sure I've got boards around. This would be more power than most systems would need, but it would take care of any need for PD-9's or the like: http://www.altronix.com/products/product.php?name=AL400ULXPD16CB