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SmartNode 4980 and 4990 Series overview 16
SmartNode 4980 & 4990 User Manual 1 • General information
SN4990 Series model codes
The SmartNode 4990 series consists of several models. They differ in the number of PRI ports and voice chan-
nels supported. All SN4991 models come equipped with two 10/100/1000Base-T Ethernet ports and a high
precision clock. The SmartNode 4991 models are listed in table 4 and table 5.
For SN4991 models, the Stratum III high precision clock provides a clock source of < 5 ppm. For PBXs that
used to rely on PSTN for accurate clock source, the SmartNode 4991 can provide a PSTN-equivalent high
precision clock. The popular DECT PBX needs such high precision clocks
.
Table 4. SmartNode 4991 G.SHDSL Models: PRI Ports and Voice Channels
Model PRI Ports
Voice
Channels
Relay G.SHDSL
High Precision
Clock
SN4991/1E15V2GS/EUI
1 15 –
9 9
SN4991/1E24V2GS/EUI
1 24 –
9 9
SN4991/1E30V2GS/EUI
1 30 –
9 9
SN4991/4E15VR2GS/EUI
4 15
9 9 9
SN4991/4E24VR2GS/EUI
4 24
9 9 9
SN4991/4E30VR2GS/EUI
4 30
9 9 9
SN4991/4E48VR2GS/EUI
4 48
9 9 9
SN4991/4E60VR2GS/EUI
4 60
9 9 9
SN4991/4E96VR2GS/EUI
4 96
9 9 9
SN4991/4E120VR2GS/EUI
4 120
9 9 9
SN4991/4E30V120R2GS/EUI
4 30
9 9 9
Table 5. SmartNode 4991 X.21 Models: PRI Ports and Voice Channels
Model PRI Ports
Voice
Channels
Relay X.21
High Precision
Clock
SN4991/1E15VD/EUI
1 15 –
9 9
SN4991/1E24VD/EUI
1 24 –
9 9
SN4991/1E30VD/EUI
1 30 –
9 9
SN4991/4E15VRD/EUI
4 15
9 9 9
SN4991/4E24VRD/EUI
4 24
9 9 9
SN4991/4E30VRD/EUI
4 30
9 9 9
SN4991/4E48VRD/EUI
4 48
9 9 9
SN4991/4E60VRD/EUI
4 60
9 9 9
SN4991/4E96VRD/EUI
4 96
9 9 9
SN4991/4E120VRD/EUI
4 120
9 9 9
SN4991/4E30V120RD/EUI
4 30
9 9 9