03-24-2008 06:50 PM - edited 03-15-2019 09:37 AM
Hi Guys,
I have a problem where by i have an analouge phone hanging off a VG248 - all working fine, except this phone is a nurse call phone and requires a certain voltage running down the line. Can anyway give me the line specifications that the VG248 produces?
Thanks
03-24-2008 08:20 PM
Have a look at this URL. It's at the bottom of the page where it shows the ringing voltage specifications. Hope this is what your looking for.
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_access/apg/vg248/v1_
0/hard_ins/vg248hws.htm
Take a look at CSCdu79519
Internally found moderate defect: Closed (C)
Voltage may be too low for some phones MWIs
03-25-2008 06:05 AM
Hi Ben,
Just to add a note to the good info from Gonz;
Technical Specifications - VG248
Power
100-240 VAC, 50-60 Hz
Talk battery
-35V
Ringing voltage
46V rms with a 14V DC offset
Loop current
21 mA
Message-waiting voltage
93V DC (one second on, one second off)
Maximum line length
5000 feet or 415 ohms (on-premise only)
REN equivalence
3 (maximum 2 off hook)
Connectors
Two RJ-21 female
Off-hook detect
Loop start only
Dialing
Dual tone multifrequency (DTMF) only
From this doc;
Hope this helps!
Rob
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