p212s DBH enrollment issues

jon102034050

Active Member
Hey all - I'm having issues enrolling my p212s on my Elk M1G.  I've got a pretty simple setup, 2 keypads, already successfully enrolled on my DBH in 1 and 2 and working for quite some time.  Now, I've purchased a p212s in order to battery backup my modem/router, but I'm having some issues enrolling it.  I've set the data bus address to 3, and moved the terminating jumper on the DBH to position 4.  After I turn it all back on, and I go to enroll devices, it cannot find the p212s.  I know it's working because I remove both keypads, plug the p212s into position 1 on the DBH, and enroll and it finds it just fine.  It seems I can't get it off of position 1 or something....?  
 
I tried searching this issue, but couldn't turn up much though - any help is appreciated, thanks!
 
I would try flipping all of the switches back and forth on the address switch bar and then setting it to address 3 again.
 
Mike.
 
EDIT
 
Also make sure that you have the jumper wire installed to enable data bus mode operation on the p3212s.
 
This is un-related to the address setting but make sure that you connect the common leads on the M1 control and the p212s together.
 
Mike.
 
mikefamig said:
This is un-related to the address setting but make sure that you connect the common leads on the M1 control and the p212s together.
 
Mike.
 
Can you explain this a bit more?  Sorry, I'm really not sure what you're referring to here.
 
mikefamig said:
I would try flipping all of the switches back and forth on the address switch bar and then setting it to address 3 again.
 
Mike.
 
EDIT
 
Also make sure that you have the jumper wire installed to enable data bus mode operation on the p3212s.
 
Will give this a try, thx
 
jon102034050 said:
Can you explain this a bit more?  Sorry, I'm really not sure what you're referring to here.
Gladly...you should connect the 12vdc - lead on the control to the 12vdc - lead on the p212s making it three wires that are connected between the two devices - "data a", "data b" and "12vdc -". The 12vdc + lead is not connected between the two devices.
 
Mike.
 
mikefamig said:
I would try flipping all of the switches back and forth on the address switch bar and then setting it to address 3 again.
 
Mike.
 
EDIT
 
Also make sure that you have the jumper wire installed to enable data bus mode operation on the p3212s.
 
Alright, I tried moving the switches back and forth just to make sure, no go.  To confirm, its positioned like this right now: Up Up Down Down.  I'm no wizard, but this should be 3 in binary I think.
 
mikefamig said:
also make sure that there is no termination jumper on the p212s and terminate the bus at the dbh
 
There is no termination jumper on the p212s, I just confirmed this
 
mikefamig said:
Gladly...you should connect the 12vdc - lead on the control to the 12vdc - lead on the p212s making it three wires that are connected between the two devices - "data a", "data b" and "12vdc -". The 12vdc + lead is not connected between the two devices.
 
Mike.
 
Basically, what you're saying here is that the DBH will have a regular ethernet termination and the other end (connecting to the p212s) will have just 3 cables.  I can confirm this is how it's hooked up.
 
Did you check as Mike suggested that you have a jumper from the NEG to M terminal on the P212S databus terminal strip to enable databus operation?
 
RAL said:
Did you check as Mike suggested that you have a jumper from the NEG to M terminal on the P212S databus terminal strip to enable databus operation?
 
I just used a spare piece of 22 guage wire and put it across neg and M terminals - should this be sufficient?
 
Also, an interesting thing I just tried. I removed my 2nd keypad, and moved the p212s up into the 2nd position, and as soon as I did this and restarted it, the enrollment shows my first keypad and the p212s (in position 3).  Could this be related to my second keypad somehow?
 
Yes, the 22 gauge wire between the terminals will work just fine.
 
Since the P212S works when you move the cable to the 2nd position, that suggest that there might be a problem with the wiring to the second keypad.  If the keypad works when plugged into the second position, that says that the data bus signals are getting from the DBH to the keypad ok.  So my guess would be that the wires that daisy chain the data bus signal from the keypad back to the DBH are the problem.  
 
Does the second keypad work when you plug it into the 3rd position and the P212S is plugged into the second position?
 
The easiest thing to try would be to re-terminate the RJ45 on the cable to the second keypad.  Also check that all the connections are solid where you spliced it to the keypad's pigtail.
 
RAL said:
Yes, the 22 gauge wire between the terminals will work just fine.
 
Since the P212S works when you move the cable to the 2nd position, that suggest that there might be a problem with the wiring to the second keypad.  If the keypad works when plugged into the second position, that says that the data bus signals are getting from the DBH to the keypad ok.  So my guess would be that the wires that daisy chain the data bus signal from the keypad back to the DBH are the problem.  
 
Does the second keypad work when you plug it into the 3rd position and the P212S is plugged into the second position?
 
The easiest thing to try would be to re-terminate the RJ45 on the cable to the second keypad.  Also check that all the connections are solid where you spliced it to the keypad's pigtail.
 
Just tried with the keypad in the 3rd position, and the p212s in the 2nd position.  Keypad (in 1) and p212s (in 2) are recognized, but the 2nd keypad (in 3 at this point) is not recognized.  My issue at this point is the cat5 coming from the second keypad is really tight because the morons who wired this house left zero slack in it.  I guess I will check the dolphin connectors on the 2nd keypad just to make sure....
 
From the m1kp installation instructions:
 
 
Setting the Data Bus Address and Enrolling Device(s) into the System

Keypads and expander devices communicate with the M1 over the RS-485 4-wire data bus. Each device must have a unique address
setting (from 1 to 16) within it’s device type. Keypads are device TYPE 1, input (zone) expanders TYPE 2, output expanders TYPE 3, etc.
The purpose of device types is so that the address numbers can be re-used in each different device type. It is OK to have a Keypad, a
Zone Expander, and a Output Expander all set to address 2 and on the same data bus since each device is a different device type.
It is NOT OK to have duplications of addresses within the same device type.  I.E. Multiple keypads on the same control cannot be
set to 'like' addresses.
SETTING THE ADDRESS: From the factory all keypads are set to address 1. Valid keypad addresses are 1 to 4 for the ELK-M1, or 1 to
16 for the ELK-M1G. The first keypad on the system (Keypad 1) is automatically enrolled upon power up. Each additional keypad must
be assigned a unique address and then manually enrolled from Menu
 
1 - Bus Module Enrollment. (See M1 Instruction Manual, Menu 01, for complete instructions on Bus Module Enrollment)

1. Press and hold the " * " key, followed by the F5 key . HOLD BOTH keys pressed for 5-10 seconds or until the LCD displays:
Exit when done. F1 Set Addr.    (This is Keypad setup mode)
NOTE: This mode may also be accessed by removing power from the keypad (unplugging the data bus cable) and then
applying power while holding any key pressed.
2. Press the F1 key to display the current address setting.
3. Set the desired address by entering a number from 1 to X.
4. Press the Exit key when done.
 
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