Cisco

Cisco OSM-4OC3-POS-SI- | 4x OC-3/STM-1 POS (SM-IR) + 4x GE | SONET/SDH POS, PPP/HDLC

SKU:OSM-4OC3-POS-SI

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Description

Enhanced Optical Services Module delivering four OC-3/STM-1 POS single-mode intermediate-reach interfaces plus four Gigabit Ethernet ports for high-density carrier edge and metro aggregation in OSM-capable chassis. Supports SONET/SDH POS with PPP/HDLC encapsulation for interoperable WAN transport alongside integrated Gigabit Ethernet switching.

Features

- High-density POS: 4 x OC-3/STM-1 with SM-IR optics
- Integrated 4 x Gigabit Ethernet for flexible aggregation
- SONET/SDH POS with PPP/HDLC for carrier-grade transport
- Enhanced OSM architecture for scalable forwarding
- Ideal for metro/edge deployments requiring POS and GE on a single module

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: What does SM-IR mean on the POS ports?
A: Single-mode, intermediate-reach optics designed for typical metro distances on standard single-mode fiber.

Q: Are the four Gigabit Ethernet ports usable concurrently with POS?
A: Yes. The GE ports operate alongside the POS interfaces for mixed transport and aggregation designs.

Q: Which platforms support this OSM?
A: Select OSM-capable Cisco routing platforms (e.g., certain 7600-series chassis). Verify support in the platform release notes.

Q: What encapsulations are supported on POS?
A: PPP and HDLC over POS are supported for interoperability with carrier networks.

Technical Specifications

- POS ports: 4 x OC-3/STM-1 (Single-Mode, Intermediate Reach)
- Ethernet ports: 4 x Gigabit Ethernet (integrated on module)
- Standards: SONET OC-3c, SDH STM-1
- Encapsulation: PPP, HDLC over POS
- Optical reach: Intermediate-reach (IR) over SMF (typical metro distances)
- Use cases: Carrier edge POS uplinks, metro aggregation, mixed POS/GE environments
- Form factor: Enhanced OSM line card for OSM-capable chassis
- Forwarding: Hardware-accelerated POS with integrated Ethernet switching

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