3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual page 41

analog telephone is connected, S2 is always off. S1 is reserved for
future use.
PC Link Light — Indicates that there is an external network device
■
connected to the ATA.
LAN Link Light — Indicates that the ATA is connected to the
■
network.
10101 — Serial port for diagnostics.
■
POTS — A connection for an analog telephone or fax machine.
■
PC — Provides a connection for a network device such as a 3Com
■
telephone.
LAN — Provides a connection to the network.
■
Figure 18 Analog Terminal Adapter (3C10120B) — Front View
R
3C10120B
Figure 19 Analog Terminal Adapter (3C10120B) — Rear View
The Analog Terminal Adapter
Power Light — The light below the icon for power indicates that the
■
ATA is receiving power.
Analog Port Status Lights (S1, S2, S3) — The lights below the icon
■
for the analog telephone indicate the status of the Analog Port. S3
turns on when the analog telephone is in use. S2 blinks briefly every
ten seconds when an analog telephone is connected to the ATA. If no
analog telephone is connected, S2 is always off. S1 is reserved for
future use.
Single Status Lights — The lights located below the icons for the
■
power connector and the Ethernet ports indicate the status of the
related port.
Overview of NBX Cards and Devices
S1 S2 S3
has these lights and connectors:
(3C10120B)
41