DSP
48
SmartNode 5540 & 4140 Series User Manual
B
• Specifications
Note
Refer to the
for the most up-to-date specifications.
DSP
One 8-channel DSP. All 2V and 4V models are restricted by software to not allow more than 4 calls. Upgrade-
able by license to max. 8 calls (at additional cost).
Voice Connectivity
2, 4 or 8 FXS ports, RJ-11/12
or
2, 4 or 8 FXO ports, RJ-11/12
or a combination of both with a total of 8 ports
2-wire Loopstart
EuroPOTS (ETSI EG201188)
Programmable AC impedance, feeding, ring and onhook voltage
Caller-ID FSK and ITU V.23/Bell 202 generation
Long Reach FXS—10 km @ 3REN load per FXS port
Data Connectivity
Two 10/100/1000Base-TX Ethernet ports (SN5540; SN4140/2ETH)
One 10/100/1000Base-TX Ethernet port (SN4140)
All ports full duplex, auto-sensing, auto-MDX
Voice Processing (signaling dependent)
Full-duplex channels with voice CODECS:
•
G.711 A-Law/-Law (64 kbps)
•
G.722 (64 kbps)
•
G.726 (ADPCM 16,24,32,40 kbps)
•
G.723.1 (5.3 or 6.3 kbps)
•
G.729ab (8kbps)
•
ilbc-13.33k (SIP-SIP)
•
AMR-NB (4.75, 5.15, 5.9, 6.7, 7.4, 7.95, 10.2, 12.2 kbps)
G.168 echo cancellation (128ms)
Four or eight simultaneous low-bandwidth voice or T.38 fax calls
DTMF detection and generation
Carrier tone detection and generation
