DSP
46
SmartNode 5541 & 4141 Series User Manual
B
• Specifications
Note
For a complete listing of available models, refer to the SmartNode VoIP page
at
https://www.patton.com/products/voip-comparison.asp
.
DSP
One 8-channel DSP. 2V and 4V models are restricted by software to not allow more than 2/4 calls. Upgrade-
able by license to max. 8 calls, which can also be used for SIP to SIP call transcoding.
Voice Connectivity
2, 4 or 8 FXS ports, RJ-11/12
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
Surge and over-voltage protection—K.21 compliant (/SP models only)
Data Connectivity
Two 10/100/1000Base-TX Ethernet ports (SN5540)
One 10/100/1000Base-TX Ethernet port (SN4140)
All ports full duplex, auto-sensing, auto-MDX
USB 2.0 host port for 3G/4G Cellular Model data links
Voice Processing (signalling dependent)
2, 4, or 8 full-duplex channels with voice CODECS (upgradeable to max. 8):
•
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)
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
Silence suppression and comfort noise
Adaptive and configurable dejitter buffer