Installation Questions
57
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3Com 3101, 3101SP, 3102, and 3105 devices support Power over
Ethernet (PoE). They do not come with AC power adapters. You can
power these devices with any IEEE 802.3af-compliant power source or
with optional AC power adapters. The packing sheet that ships with
each device shows the device power options.
What External
Devices Can Connect
to an NBX System?
The following devices can be connected to an NBX system:
■
Music-on-hold device, such as a radio, tape player, disk player, or
computer sound card, equipped with a line out (600 ohm) connection
can be connected directly into the Call Processor to provide audio for
callers waiting on hold.
■
Third-party 10BASE-T or 100BASE-T Ethernet hubs and switches. In a
SuperStack 3 NBX system, you can connect the Ethernet 1 port on the
SuperStack 3 NBX Call Processor to an external 10BASE-T or
100BASE-TX compliant hub. You can connect the Shared Ethernet
port or the upper switched 10/100 Mbps Ethernet port to an external
10BASE-T or 100BASE-TX compliant hub.
If you are connecting third-party routers or switches to the NBX system,
be sure that the connection is programmed for half-duplex operation.
■
Multiple NBX Hub or Uplink cards (NBX 100). In an NBX 100 system,
you can use the BNC (Hub cards only) or 10BT Uplink connector on a
Hub or Uplink card or on the Network Call Processor to connect to an
external 10BASE-T compliant hub.
■
An ISDN (Integrated Services Digital Network) router, Frame Relay
Access Device (FRAD) router, or Voice Over IP gateway.
■
A WAN. You can access NBX systems located at branch offices
through a wide area network (WAN). Before you use the NBX system
for voice over the WAN, verify that the WAN offers adequate
bandwidth, and that the gateways can be configured to provide the
correct routing information.
■
External paging amplifier. Both the NBX 100 Call Processor and the
SuperStack 3 NBX Call Processor include an RJ-11 jack to connect an
externally powered paging amplifier.
■
Standard telephone for power-fail situations. In the United States, you
can connect a standard POTS (Plain Old Telephone Service —
2500-series compatible) telephone to an RJ-11 connector on the front
of an NBX Analog Line Card.
Содержание 3C10111C - NBX 100 - Modular Exp Base
Страница 20: ...20 ABOUT THIS GUIDE ...
Страница 102: ...102 CHAPTER 2 INSTALLING SYSTEM HARDWARE COMPONENTS ...
Страница 122: ...122 CHAPTER 4 ANALOG LINE CARDS ...
Страница 132: ...132 CHAPTER 5 ANALOG DEVICES ...
Страница 138: ...138 CHAPTER 6 BRI ST DIGITAL LINE CARD ...
Страница 144: ...144 CHAPTER 7 E1 ISDN PRI DIGITAL LINE CARD ...
Страница 150: ...150 CHAPTER 8 T1 DIGITAL LINE CARD ...
Страница 184: ...184 APPENDIX A SPECIFICATIONS ...
Страница 190: ...190 APPENDIX B CIRCUIT PROVISIONING ...
Страница 206: ...206 INDEX ...