TIF-2000A
Installation and Operation 27
Telephone Interface Requirements Form
October 2012
The TIF-2000A Digital Hybrid Telephone Line Interface has been designed to respond to ringing for auto-answer and to respond to
a number of conditions to detect hang-up. These conditions are (in the standard product) based upon the telephone systems of the
US and other select countries. PBX (Private Branch Exchange) systems in the US and other countries may have ringing and hang-
up characteristics which differ from the design parameters used in the TIF-2000A. Public telephone systems in countries other than
those currently supported by Bosch Security Systems, Inc. may have ringing and hang up characteristics which differ from the
design parameters used in the TIF-2000A. Additionally, some countries require governmental approval for connection of the TIF-
2000A to the public telephone system. Bosch Security Systems, Inc. handles these requirement on a case by case basis and may
require a one-time engineering fee to adapt the TIF-2000A for a specific telephone system or to obtain governmental approval.
Additionally, Bosch Security Systems, Inc. may require the customer to initiate the government approval process of the TIF-2000A
for their particular telephone system.
Here is a form which can be used to obtain the required specific technical information.
Termination impedance matching (off-hook):______________________________________________________________
Termination impedance matching (on-hook): ______________________________________________________________
Protection devices required:
Return loss: _____________________________________________________________________________________dBm
Maximum allowable transmit level:__________________________________________________________________dBm
Hi-pot Tests:
Tip to ring:
Tip to ground:
Ring to ground:
Ring Signal:
Frequency__________________HzCadence:___________sec.Onsec. Off_____________
Disconnect Signal:
Loop Drop:Y_______
N_______
Loop Reversal:Y_______
N_______
Audio Signal:Y_______
N_______
If Y, frequency of tone (s): ______________________________________________
Cadence:___________sec.On
sec. Off_____________
DTMF dialing: frequencies
duration:_____________msec.interdigit pause:_____________msec.
Pulse Dialing:
pulse rate: _______________Hz break-to-make ratio: _________:________
Hook Flash Break Duration: _______________msec. min.__________________ msec. max