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