Pete, For electrical requirements for the DC loop, to measure capacitance when sending dial signals, the ring signal is 20Hz. Results must be 3 uF or less.
For receiving state the ring signal is 75Vrms, 15-20 Hz. In the JATE blue book they use an example with 75Vrms/16Hz. This test provides impedance of the DC loop which must be 2Kohms or greater for 75Vrms/16Hz. These tests are for 2-wire analog lines. Christopher Saleem At 10:19 AM 10/1/98 -0500, Pete Van Raalte wrote: >TREGers, > >I have contradictory information on Japanese requirements for 2- >or 4-wire analog ring-down lines connected to Customer >Premises Equipment. > >One source tells me the requirement is 75 VRMS, 20 Hz. The other >tells me to use 75 VRMS, 60 Hz. > >Does anyone have information, specifications, or advice? > >advTHANKSce > >Pete >---------------------------------------------------------------------------- >Peter Van Raalte | Email: [email protected] >Compliance Engineer | >V-Band Corporation | Phone: 914-789-5117 >565 Taxter Road | >Elmsford NY 10523 | FAX: 914-347-3432 >--------------------------------------------------------------------------- >
