Featured Products by Lucent Technologies

Trunk Modules for the Stinger DSL Access Concentrator

The trunk modules for the Stinger DSL access concentrator are the interface between Stinger and the carrier ATM core network. They carry the traffic aggregated from the DSL subscribers and send it to CBX 500, GX 550 or other ATM core switches. Occupying two central slots in the rear of the Stinger chassis, the trunk modules offer a choice of copper or optical connectivity. Such WAN interface flexibility makes Stinger compatible with a wide range of carrier-class switches, from legacy systems to newly emerging designs.

Copper and fiber versions fulfill
WAN connectivity and port density needs

Some DSL access concentrators are limited to just one kind of direct WAN interface, and some provide no direct WAN interface at all. Others offer different WAN interfaces, but lack adequate trunk interface density. Stinger is different. It connects directly to the WAN through trunk modules featuring either copper or fiber WAN interfaces. These trunk modules also give Stinger twice the per-chassis trunk capacity of most competing products.

  • 2-port OC-3c/STM-1 (optical) trunk module (up to 4 ports per Stinger chassis)
  • DS3 trunk module features 2 active and 2 passive DS3 ports per module (up to 4 active ports per system)
  • 155.52 Mbps throughput for OC-3c/STM-1
  • 44.738 Mbps throughput for DS3
  • No external access multiplexer required for WAN connectivity

Redundancy preserves connectivity with the ATM backbone network

Trunk modules support port-level redundancy with manual or automatic switchover for "always connected" performance. If two trunk modules are installed, all four ports may be used independently, or two ports may be designated as active and two as backup. Then, if a primary trunk port should fail, the Stinger control module can command its backup to take over. This feature is available whether copper or optical interfaces are used and helps to maintain the high network integrity that attracts new customers and retains current ones.

Scalability to OC-12 accommodates escalating bandwidth needs

The burgeoning popularity of DSL and the escalating use of data-intensive applications places a demand for more and more bandwidth on service providers and carriers. This demand is driving the shift toward SONET-based fiber optic technology, which offers vastly greater bandwidth than traditional wire lines. Because the Stinger trunk modules are available with OC-3c fiber optic interfaces, they already provide more than enough bandwidth for today's networking environment. But for tomorrow's demand, even greater throughput can be attained by installing a trunk module with an OC-12 interface. Scheduled for availability by mid-2000, the OC-12 trunk module moves data at speeds up to 622 Mbps. And, like all Stinger trunk modules, the OC-12 trunk module can be backed up with a redundant spare for carrier-class ultra reliability.

Hardware Specifications for Lucent Trunk Modules

Dimensions
Height: 15 in. (38.1 cm)
Width: 1.06 in. (2.69 cm)
Depth: 5 in. (12.7 cm)

Weight
1.5 lb (0.68 Kg)

Operating requirements
Temperature: 32° to 122° F (0° to 40° C),
Relative Humidity: 10% to 95% (noncondensing)
Operating Altitude: Up to 10,000 ft (3050 m)

EMC/RFI compliance
FCC Part 15 Class A, CISPR Class A

4-port DS3 Trunk Module
Power requirements

11.5 W

Physical connectors
BNC connector per ANSI T1.404

Physical interfaces
4 (2 active, 2 standby) ATM UNI 3.0/3.1 cell-bearing DS3, Ports supporting C-bit/M-framing, PLCP per TR-TSY-000773, and direct cell mapping per G.804

Interface standards
ANSI T1E1.1/94-002R1, T1.107, T1.107a, T1.403; ATM Forum UNI 3.0/3.1; Bellcore TR-NWT 001112, TR-TSY-000499, TR-NWT-000820; ITU G.804; RFC 1407; TR54014 (AT&T ACCUNET T45 and T45R)

OC-3c/STM-1 Trunk Module
Power requirements

11.5 W

Physical connectors
Subscriber Connector (SC)

Physical interfaces
2 UNI 3.0/3.1 cell bearing OC-3c/ STM-1 155.52 Mbps ports (optical)

Interface standards
ITU G.957 and G.709 (optical)

Other OC-3c standards
ATM Forum UNI 3.0/3.1; ANSI T1M1.3/92-005R1; Bellcore TR-NWT- 001112; Bellcore GR-253- CORE; RFC SONET 1595

Other STM-1 standards
ATM Forum UNI 3.0/3.1; ANSI T1M1.3/92-005R1; Bellcore GR-253-CORE; RFC SONET 1595

Minimum bend radius
3 in. (7.62 cm)

Optical specifications (single-mode laser optics)
Nominal Wavelength: 1310 nm, TX distance: 15 kilometers, max., TX power: -15dBm to -8dBm, RX Sensitivity: -8dBm, -28dBm



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