SmartNode 4950-NCE Getting Started Guide
SN4951-NCE model codes
The high precision SmartNode 4951-NCE models have a Stratum III clock. The Stratum III clock provides a
clock source of < 5 ppm. For PBXs that used to rely on PSTN for accurate clock source, the SmartNode 4951
can provide a PSTN-equivalent high precision clock. The popular DECT PBX needs such high precision
clocks.
Note
SmartNode 4950-NCE rear panel
The SmartNode 4950-NCE rear panel ports are described in
Power
SmartNode 4950-NCE rear panel
For high precision clock models, replace SN4950-NCE with
in the model code.
PRI port 0/0
0/3
0/2
0/1
T1/E1
T1/E1
PRI ports 0/3–0/0
Figure 2. SN4950-NCE rear panel
table
4.
0 /3
0 /2
0 /1
T 1
0 /0
/E
1
E T
H
0 /1
E T
H
0 /0
C o
n s
o le
R S
-2
3 2
0/0
T1/E1
T1/E1
0/0
10/100/1000Base-T port
ETH 0/0
10/100/1000Base-T port
1 • General information
SN4950/1E30V
ETH 0/1
ETH 0/0
Console
RS-232
SN4950/4E120V
ETH 0/1
ETH 0/0
Console
RS-232
Console
ETH 0/1
RS-232 port
RESET
button
16