DS3 WAN Card and Fiber ECTU
ATM Fabric Cards for the CNX-5 and DS3 Configurations

Technical information
System Level
Standards compliant DS3 WAN interface (44.736 Mb/s)
Two OC-3 rate optical interfaces for connection to the fiber ring
ATM Functionality
TM 4.0-based ATM interface
Multiple classes of service including: CBR, UBR, VBR-rt, VBR-nrt, UBRmdcr
16 VCs with combinations of QoS per subscriber line
Automatic Protection Switching (APS) of OC-3 optical interfaces
Network interface overbooking and traffic shaping capability. Upstream policing capability
VC shaping and guaranteed QoS for delay-sensitive applications
Large buffers with multi-grained congestion management, including EPD/PPD and multiple watermarks
Compatible with multi-protocol encapsulation over ATM
Comprehensive ATM OAM (I.610 FM and PM) and ATM/DSL MIBs
System Architecture
One Fiber ECTU per dual channel bank and one DS3 WAN card per ring; up to 15 Fiber ECTU cards per ring
AC power fail detect feature
DSL provisioning data stored in non-volatile memory
Legacy Test Functions
Support for AUB22 CTU functionality, including remote test access, diagnostics and configuration of special service channel units
Local interface to Craft Interface Unit (CIU) or SCAT II system
Management Interfaces
Craft interface via EIA-232 or 10BaseT Ethernet Supports IP over ATM in-band management channel
Power Requirements
Operating Voltage Derived from -48V DC in SLC RT
Environmental Characteristics
Operating Temperature Range -40° F to 150° F; -40° C to +65° C
Storage Temperature Range -40° F to 158° F; -40° C to +70° C
Relative Humidity 5% to 90% non-condensing
Altitude 12,000 ft; 4,000 m
Compliance
Safety UL 60950
NEBS Level 3 Telcordia™ GR-63-CORE, GR-1089-CORE
Physical Characteristics
Dimensions 7.5" (H) × 0.6" (W) × 10" (D) 190 mm (H) × 15 mm (W) × 250 mm (D)
Weight 0.4 lbs; 200 g


Ciena may from time to time make changes to the products or specifications contained herein without notice.