Filter
Top Products
12 Chapter 2 System Overview
NN40020-200NN40020-200
BCM50 physical interfaces
The BCM50 interfaces are designed so that you do not need additional hardware. See Figure 1 for
a graphical representation of the BCM50 interfaces.
Your BCM50 comes with these interfaces:
• Twelve digital station ports that support the complete line of Business Series Telephones.
These ports are accessible through the front pane RJ-21 connector and are enabled through
keycodes.
• Four Analog Loop Supervised Trunks. These ports are accessible through the front panel
RJ-21 connector and are enabled through keycodes.
• Four Analog Station interfaces with message waiting and CLID support. These ports are
accessible through the front panel RJ-21 connector are enabled through keycodes.
• Page and auxiliary relay output on the front panel RJ-21 connector.
• Three-port 10/100 Ethernet switch with auto sensing and auto polarity. Two of these ports
also support connecting optional expansion units.
• One 10/100 Ethernet port reserved for direct access management of the system.
• Music on hold input supported either through front panel jack or RJ-21 connector.
• USB port to enhance BCM50 management.
You can extend the capacity of your system by using the optional “BCM50 expansion unit and
media bay modules” on page 18.
Figure 1 BCM50 Front panel and interfaces
Telephony features
BCM50 comes with a full set of telephony features that can respond to the varied requirements of
your business. BCM50 supports:
• the base telephony features currently provided in BCM 4.0
• Business Series Telephones including Doorphone
• analog station terminals, including phones and fax machines
19 V DC
power
Status
power LED
OA&M
(port 0)
LAN
port 1
Expansion ports /
port 2/port 3
Reset switch
Music In
USB
RJ-21 telephony connector —
analog trunks, digital stations,
analog stations, music on hold,
page out, aux relay
Retention clip
mounting hole