Filter
Top Products
SN4120 overview 16
SmartNode 4120 User Manual 1 • General information
SN4120 rear panel
The SN4120 is an ISDN BRI VoIP Gateway that supports two VoIP calls via a single ISDN BRI port (see
figure 1). The SN4120 rear panel ports are described in table 3.
Figure 1. SN4120 rear panel
Table 3. Rear panel ports
Port Description
ETH (LAN)
Switched Auto-MDX Fast-Ethernet port, RJ-45 (see
figure 1
), connect the unit to an
Internet Telephony Service Provider (ITSP) [via an xDSL or cable modem] or a
remote IP-PBX [via a private corporate network].
BRI TE
ISDN BRI TE (Usr) port, RJ-45 S0 (S/T)-interface (see
figure 1
), connects the
unit to an ISDN NT. Point-to-point or point-to-multipoint confgurable.
12V DC, 1.0A
The SN4120 has a 12V DC 1A power input (see
figure 1
).
Reset
The reset button (see
figure 1
) has three functions:
•
Restart the unit with the current startup configuration—Press (for less than 1
second) and release the Reset button to restart the unit with the current star-
tup configuration.
•
Restart the unit with factory default configuration—Press the Reset button
for 5 seconds until the Power LED (see
figure 2
on page 17) starts blinking
to restart the unit with factory default configuration.
•
Restart the unit in bootloader mode (to be used only by trained SN4120
technicians)—Starting with the unit powered off, press and hold the Reset
button as you apply power to the unit. Release the Reset button when the
Power LED starts blinking so the unit will enter bootloader mode.
SN4120/2BIS4V/EUI
(2x BRI/So + 4 voice/fax calls)
ETH 0/0
Reset
12V DC 1A
LAN TE TE
BRI 0/0 BRI 0/1