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April 14, 2006 Appendix B: Specifications
MM70xG2-UM-03 B-5
HARDWARE SPECIFICATIONS
•LED
• Power (where: x=1, 2-Wire; x=2, 4-Wire)
– MM70xG2-003 using 120 VAC, 60 Hz
– MM70xG2-004 using 230 VAC, 50 Hz
– MM70xG2-005 using 230 VAC, 50 Hz
• Operating Temperature of the modem: 0~50°C
• Power Adapter Spec:
– Input: 100~240 VAC, 50/60 Hz, 0.3 A
– Output: 6 VDC, 2 A
• Ethernet: Link, Tx, Rx, Collision
• DSL: Sync, Tx, Rx, Margin
• Connectors
– DSL Interface: RJ-11
– 10/100Base-T: RJ-45
– Console Port: RJ-45 (serial connection to RS-232 for local configuration)
• LAN Interface
– 10/100Base-T (IEEE 802.3i)
– Connector: RJ-45 with MDI/MDI-X switch
• WAN Interface
– G.shdsl (Symmetrical High-Speed Digital Subscriber Line)
• Maximum transmission rate:
– Downstream – 2304 kbps for single-pair; 4608 kbps for two-pair
– Upstream – 2304 kbps for single-pair; 4608 kbps for two-pair
• Minimum transmission rate to sync
– 192 kbps for MM701G2
– 384 kbps for MM702G2
• Connector
–RJ-11
• ATM (Asynchronous Transfer Mode)
– ATM Adaptation Layer - AAL5 (ITU I.363.5)—Supports encapsulation and de-encapsulation of AAL5
Protocol Data Units (PDUs) for convergence. Segmentation and Reassembly (SAR) layer segments and
reassembles AAL5 PDUs into ATM cells that are 48 byte SAR-PDUs.
• ATM Layer - Attaches or strips the 5-byte header to the 48-byte SAR-PDU.
– Cell Format - Complies with ITU I.361 ATM cell format. Cell delineation complies with ITU I.432 Cell
Delineation and HEC. Cells are fixed length (53 bytes), including 5 bytes of header and 48 bytes of
payload. Included in the header are the VPI and VCI number.
• Virtual Circuit type - Permanent Virtual Circuit (PVC) per ATM forum UNI Version 3.1.
– Maximum Virtual Circuits - 32 virtual circuits that can simultaneously connect to service providers for
sessions encapsulated either as PPP or RFC 1483 Bridging/Routing.