Nortel Networks BCM50 - Manual (Page 37)

Chapter 2 Introducing the BCM50 hardware 37
Installation and Maintenance Guide
Table 1 Main unit ports/connectors and descriptions
Port/connector Description
Power connector A barrel connector jack used to connect the power supply to the main unit.
Retention clip mounting hole A small hole into which you insert the retention clip. The retention clip secures the
power connector to the unit.
OAM port (port 0) An RJ-45 jack used to connect a computer running administration software, such as
Element Manager, to the main unit.
LAN port (port 1) An RJ-45 jack used to connect the customer LAN to the main unit.
Expansion/LAN ports (ports 2
and 3) Two RJ-45 jacks used to connect the expansion units to the main unit. The expansion
ports can also provide connections to the Ethernet switch internal to the main unit. If
the BCM50 system has no expansion units connected to these ports, you can use the
expansion/LAN ports to connect additional devices to the LAN.
Note: Activate the feature for the expansion ports by selecting this feature when you
generate your keycode. If you purchase only one expansion port feature, the
expansion port on the left (port 2) is active.
WAN port
(BCM50a and BCM50e only).
For BCM50a: An RJ-11 jack used to connect the BCM50a main unit to the ADSL line
provided by your Internet service provider (ISP).
For BCM50e: An RJ-45 jack used to connect the BCM50e to the Ethernet port of a
WAN edge device (for example, an external ADSL modem or cable modem).
Note: This port is not available on the BCM50 main unit.
Additional LAN ports
(BCM50a and BCM50e only).
Four RJ-45 jacks that provide connections to the Ethernet switch in the BCM50a and
BCM50e main units. You can use these ports to connect additional devices to the
LAN.
Note 1: These ports are not available on the BCM50 main unit.
Note 2: The BCM50 Release 1 hardware has three additional LAN (RJ-45) ports.
BRI ports
(BCM50b series only).
Two RJ-45 jacks that provide connections for BRI trunks from the Public Switched
Telephone Network (PSTN).
On the BCM50b series main units, the four analog lines on the RJ-21 telephony
connector are not available.
Note: The BRI ports feature is activated by selecting this feature when you generate
your keycode. If you do not purchase this feature, the BRI ports are unavailable.
Reset switch A button to activate the reset feature. Use a long thin tool to press the button.
Warning: The reset feature erases programming information; use the feature with
care.
Music source port A phono jack used to connect a music source to the main unit. If you use this port, the
music source connections on the RJ-21 telephony connector are disabled.
USB port A USB 1.1-compatible port used to connect a USB storage device or the data
interface for an uninterruptable power supply (UPS) to the main unit. The main unit
uses the data interface for the UPS to monitor and control the UPS functions. To
connect both a USB storage device and a UPS data interface, an industry-standard
USB hub (USB 1.1-compatible) is required.
Note: You must format the USB storage device for the FAT32 file system. If necessary,
reformat the USB storage device by plugging it into a USB port on your computer,
right-clicking the USB device icon, and selecting FAT32 reformatting. This destroys
any data on the USB.
RJ-21 telephony connector An RJ-21 port used to connect telephony devices to the main unit.
The four analog lines on the RJ-21 telephony connector are available only with the
Standard series main units. The BRI series main units include onboard BRI ports
instead of the analog lines.