Specifications

1 BitStorm 1900 Access Multiplexer Elastic Networks
1-32 BitStorm 1900™ Installation and Maintenance Guide 08-01101-01, Rev. 1.50
Switch Card
The BitStorm Switch Card (installed next to the modem cards) is a
WAN interface that aggregates the Ethernet traffic generated by the
4212 stat-mux modem cards and passes it to the local Ethernet data net-
work.
The Switch card has three external Ethernet ports on the front faceplate
of the card. The top two Ethernet up-link ports are auto sensing 10/
100Base-T ports (uncrossed). These ports are used to connect the Bit-
Storm 1900™ Access Multiplexer shelf to the data network and to
interconnect or "stack" shelves in a multi-shelf bay, sharing the
100Base-T connection. The bottom Ethernet port is a 10Base-T port
(crossed) used for local craft access to the shelf.
NOTE: The 70 W AC or 250 W DC power card must be used with a
Switch card.
When using the Switch Card, the Site Manager software must either be
on the same LAN segment, or each CO and CPE modem must have an
IP address for Modex Daemon extents to operate.
!
CAUTION: POSSIBLE SERVICE INTERRUPTION! Only
4212 CO Modem Cards can be used with the
Switch Card.
!
CAUTION: POSSIBLE SERVICE INTERRUPTION! The
BitStorm 1900 Access Multiplexer may lock
up if both uplink ports are connected to the
same router or switch.