ADTRAN 1200305L1 system manual Octal/Quad FXS Option Module P/N 1200309L1/1200328L1

Section 1, System Description ATLAS 550 System Manual

Octal/Quad FXS Option Module (P/N 1200309L1/1200328L1)

The Octal/Quad FXS Option Modules provide eight or four analog voice-grade interfaces. Each interface provides talk battery, off-hook supervision, E&M signaling conversion, and ringing in loop-start or ground-start operation. Call progress tones, where necessary, are provided to the modules by the ATLAS 550 base unit.

Octal/Quad FXO Option Module (P/N 1200310L1/1200329L1)

The Octal/Quad FXO Option Modules provide eight or four analog voice-grade interfaces. Each interface supports loop-start and ground-start operation. Applications include termination of analog PSTN trunks and connections to PBX station-side interfaces (OPX).

Octal E&M Option Module (P/N 1200313L1)

The Octal E&M Option Module provides eight analog voice-grade interfaces, either 2-wire or 4-wire, for use as tie-trunks, using E&M signaling or as dedicated transmission only (TO) interfaces for additional data services. E&M signaling types 1-5 are supported.

Legacy Data Option Module (P/N 1200342L1)

The Legacy Data Option Module provides four EIA-232 or V.35 interfaces (or any combination up to four) for sync or async packet data applications. Protocols supported include SNA/SDLC, frame relay, PPP, transparent bit-oriented (TBOP), and transparent async. The Legacy Data Option Module includes an adapter cable to provide four EIA-232 (DB-25) interfaces. An optional V.35 adapter cable

(P/N 1200348L1) is also available.

NxT1 HSSI/V.35 Option Module (P/N 1200346L2)

The NxT1 HSSI/V.35 Option Module aggregates bandwidth of up to eight T1s into a single logical channel on the HSSI or V.35 (using an optional adapter cable) interface. The NxT1 HSSI/V.35 Option Module supports point-to-point T1 applications only. Any of the four built-in T1 ports of the NxT1 HSSI/V.35 Option Module can provide timing for the ATLAS 550 system.

Octal Ethernet Switch Option Module (P/N 1200766L1)

The Octal Ethernet Switch Option Module provides eight interfaces that can operate as 10BaseT or 100BaseTX. Each interface uses auto-negotiation to support Ethernet traffic at 10 Mbps or 100 Mbps, half-duplex or full-duplex. Automatic MDI/MDIX crossover is provided to simplify LAN connections.

Resource Host Module (P/N 1200324L1)

The Resource Host Module provides an inexpensive way to use a desired plug-on resource module, such as the Voice Compression Module, when a plug-in module is not necessary. This module has no other functionality except to act as the base for the plug-on resource modules.

20 © 2002 ADTRAN, Inc. 61200305L1-1F