Verilink 8100A (34-00237) Product Manual - Manual (Page 277)

S p e c i f i c a t i o n s B-25
ADSL (8104/8104s and 8108/8108s)
Voice Features
Analog Voice
Voice Ports: 4 or 8 POTS ports (RJ-11)
Failover: Analog input fail over to Line 1 (RJ-11)
Signaling: Loop start, ground start
Dialing: DTMF (tone), Pulse
Ring Source: Internal
Impedance: 600 or 900
Ω or complex impedance
REN: 5 REN per port, 16 REN total
Loop Current: 20, 24 mA typical (country-specific)
Idle State Voltage:
−48 V typical
Ring Voltage: Balanced 65 V rms
± 5% at 5 REN load
Ring Frequency: 20, 25, 50 Hz (country-specific)
Gain/System Loss: Programmable, +3 to
−9 dB
Digital Voice
Compression for non “s” Units: G.711 (64 kbps PCM), G.726 (32 kbps
ADPCM)
Compression for “s” Units (VoIP): G.711 (64 kbps PCM), G.726 (32 kbps
ADPCM), G.729a (8 kbps CS-ACELP)
Encoding: A-law,
µ-law
Echo Cancellation: G.168 compliant (single reflector)
Protocol Support: CopperCom, ELCP (af-vmoa-0145),
Jetstream, LES (af-vmoa-0145), MGCP
and SIP (s-version only)
DID/DOD Support
Fax Support: V.17, V.29 support
Modem Support: V.34, V.90 support
Calling Features: Caller ID, flash hook, distinctive ring,
stutter dial tone, call forwarding, call
waiting
Cell Delay Variation Buffer: Configurable 0
−30 ms
Data Features
LAN Interface: 10/100Base-T (RJ-45)
Bridging: IEEE 802.1d including spanning tree
Routing: Default, Static, RIP1 (RFC 1058), RIP2
(RFC 2453), ICMP for IP Packet
Processing