Osborne-Hoffman 2000E receiver problem

[cha...@shore.net]

To All:

Osborne-Hoffman 2000E receiver.

Line one functions properly. Line two is the problem. No additional
lines.

When a signal is sent to line two, the receiver does not seize the
line, hence the acknowledge tone is not generated for the xmitter to
hear. When calling line two via headset I only hear the phone company
generated ring voltage/tone that continues until I hang up. In effect
the receiver does not answer when line two is called. Also when line
one is busy with a signal, and a second call is sent to line one, the
call is routed/hunted to line two, but the receiver still does not
answe line two.r.

The receiver is aware of the ring voltage coming in on line two,
because the receiver sounds it's buzzer, and then the operator
silences it.

I have a spare OH, but before I go to the CO I thought I's query here
for advice.

Thanks. Charlie

[mleuck]

Junk it and get a SurGard

[John Sowden]

Before your last comment regarding the buzzer,my thought was that the
receiver ring detect circuit is not working. If the buzzer is connected
across the phone with, with applicable capacitor or course, the receiver
may still not be detecting ring, just the buzzer is working. Check the
no. of rings to answer in programming. Meter the phone line on ringing
to confirm it is 90v AC (approx.). Switch the phone lines to confirm
that is is the receiver, not the phone lines.
Trace the wiring from the coil of the line seizure relay, backwards, to
see if there is a hardware issue re: the relay not seizing. If there
are duplicate circuits for each phone line, compare the circuits with a
meter to determine the difference. If the receiver uses line cards,
swap them.

These are the ones that jump out at me. As you dive in, you might find
other related issues,

John

[cha...@shore.net]

Thanks for the response. My problem has been resolved. A visit to
the CO, with spare 200E in hand, turned up thhe following info:

Operators test dial to all receiver phone numbers and hang up when
they hear the acknowledge tone. When they don't hear the tone they
notify the respective alarm company.

The operators also said that the OH receiver buzzed when they called
the line, requiring them to push the silence button on the OH.

When I arrived at the CO I dialed the line in question, did not hear
the tone, but there was also no buzzing from the OH. Tested several
times; no buzzing. Conclusion? Check for presence of dial tone
coming into the CO.

Checked the punchdown block interface and while attaching my headset
to the terminals I heard in the headset what souinded like a kissoff
tone, and the bridgiing clip not quite seated. Found dial tone present
after reseating the clip. I then called the line from my cell phone
and heard the acknowledge tone. All has been well since.

Conclusion? Bridge clip not seated properly. Another tech recently had
been on this block with headset, and when removing headset clips, may
had pulled on the bridge clip.

[WilliamPowerP]

Those anybody knows how to clean the buffer of my OH 2000

--
For full context, visit https://forums.cabling-design.com/security-physical/osborne-hoffman-2000e-receiver-problem-64126-.htm

[mleuck]

If the event you wish to delete is not in the display, scroll to event in the LCD. Use UP or DOWN
switch as needed
To enter Menu……………….Press # switch
To delete Event……………...Press # to select function

Press DOWN to delete alarm
Past events, on which the buzzer has been acknowledged and on which operator action has not
been completed may be viewed by scrolling through the LCD display. The LCD prompts the
operator to complete action on past alarms. Use the DOWN or UP key to scroll through the
display. The LCD will return to display the most recent event automatically if a scrolling switch is
not activated within 15 seconds.
All past events including those on which operator action has been completed are permanently
stored on the printout. Each line card stores up to 768 events. If the printer is disconnected, past
events are sent to the printer after re-connection.

[Jim Davis]

Jeeeeeze your "old"