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2000-A2-GB20-10 - 256 - February 2004
Idle State Voltage >21V
Ring Voltage JF2004,
JF2304/8
JF2008,
JF2104/8
>40 vrms at 2.5 REN load
>40 vrms at 5 REN load
Ring Frequency 20, 25 Hz
Gain/System Loss Programmable, +3dB to -9dB
Table C–3. JF2004i and JF2104i ISDN Voice Features
Feature Description
Ports 4 BRI S0 ports (RJ45)
Line 4-wire (Tx and Rx pair)
Operating Mode Full Duplex
Data Rate 2B+D ISDN (B=64 kbps, D=16 kbps)
128 kbps available
Power PS1 and PS2 powering for ISDN phone, 10 power
consumption units (pcu)/port
Table C–4. 2/4/8-Port Digital Voice Features
Feature Description
Compression G.711 (64 kbps PCM), G.726 (32 kbps ADPCM)
Encoding A-law, u-law
Echo Cancellation G.168 compliant (single reflector)
Fax Support Digital G3, G4 (for JF2004i and JF2104i), and
analog V.17, V.29 (with external adapter)
Protocol Support CopperCom, ELCP (af-vmoa-0145), Paradyne,
LES (af-vmoa-0145), MGCP, SIP capable
Modem Support V.34, V.90 support
Calling Features caller ID, flash hook, three-way calling, distinctive
ringing, stutter dial tone, call forwarding, call
waiting
Table C–2. 2/4/8-Port Analog Voice Features
Feature IAD Description