Specifications

1 BitStorm 1900 Access Multiplexer Elastic Networks
1-12 BitStorm 1900™ Installation and Maintenance Guide 08-01101-01, Rev. 1.50
4 Mbps CO Modem Card Specifications
4212 CO Modem Card
The 4212 CO modem card provides 12 statistically multiplexed Ether-
Loop lines sharing a single 4 Mbps modem. Figure 1-2,“BitStorm 1900
with 4212 CO Modem Cards (Part #:01-30067-01),” on page 13 shows
the 4212 CO modem cards with a Switch Card, however, they can oper-
ate with an MIU as well.
NOTE: When the 4212 CO modem card is used with an MIU card that
passes the Ethernet interface, the external Ethernet Switch
must be set to 10 Mbps, Full Duplex. Auto Dectection will not
operate properly.
Special Features
• Same Card Broadcast
• Activate/De-activate Etherloop Ports
• Privacy Management
• Spectrum Manager - ADSL Protect
!
WARNING: POSSIBLE EQUIPMENT DAMAGE! To
comply with Telcordia GR-1089-CORE,
Outside Plant Voltage/Current Limiting
Protection is required for each Outside Plant
Exposed line.