Cisco WS-G5487 Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 1000BASE-ZX GBIC Optical Transceiver Module
SKU:WS-G5487
Naming Breakdown
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WS: Cisco Catalyst Switch hardware identifier
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G: Gigabit Ethernet
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5487: GBIC transceiver model identifier
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ZX: Extended long-reach single-mode Gigabit optical specification
Core Product Positioning
The Cisco WS-G5487 is a hot‑swappable MSA‑compliant GBIC (Gigabit Interface Converter) optical transceiver for long-distance Gigabit Ethernet transport over single-mode fiber. Designed for legacy Catalyst modular switching platforms, it delivers extended fiber reach for inter-building campus links, metropolitan backbone connections and remote site inter-switch links. It operates exclusively with single-mode fiber and requires optical attenuators for short fiber spans below 25 km to prevent receiver overload.
2. Hardware & Software Compatibility
Supported Host Platforms
Cisco Catalyst 4000, 4500, 5000, 6000, 6500 Series modular switches with GBIC slots
Supported IOS Releases
All mainstream Cisco IOS versions supporting GBIC transceivers
Supported Fiber Type
Only Single‑Mode Fiber (SMF 9/125μm); incompatible with multi-mode fiber
Unsupported Platforms
SFP‑only switches, Nexus data center switches, MDS SAN directors, ISR routers
Note: GBIC cannot be inserted directly into SFP slots without an adapter.
3. Physical & Optical Performance Specifications
Form Factor
Hot‑swappable GBIC module compliant with GBIC MSA
Optical Interface
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Operating Wavelength: 1550 nm (DFB laser)
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Connector: Duplex SC
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Data Rate: 1.25 Gbps wire‑speed Gigabit Ethernet
Maximum Transmission Reach
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Standard single‑mode fiber: Up to70 km
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Premium / dispersion‑shifted single‑mode fiber: Up to100 km
Important: An inline optical attenuator is mandatory for spans shorter than 25 km to avoid receiver saturation.
Optical Power Budget
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Transmit Power: 0 dBm ~ +4 dBm
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Receiver Sensitivity: Minimum -25 dBm
Digital Diagnostics
No Digital Diagnostic Monitoring Interface (DDMI) support
Environmental Operating Parameters
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Operating Temperature: 0°C ~ 70°C (32°F ~ 158°F)
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Storage Temperature: -40°C ~ 85°C (-40°F ~ 185°F)
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Relative Humidity: 10% – 90%, non‑condensing
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Maximum operating altitude: 3,000 meters
Typical Power Consumption
4. Supported Functional Capabilities
Ethernet Transport
Wire‑speed Gigabit Ethernet transmission, auto‑negotiation, full/half duplex operation
Layer 2 Protocol Support
802.1Q VLAN trunking, 802.3x flow control, LACP, STP/RSTP/MSTP, EtherChannel aggregation
Interface Diagnostics
Link status detection, port error counters, local loopback diagnostics
High Availability
OIR hot‑swap capability on supported Catalyst chassis; link redundancy via spanning tree or port channels
Operations & Management
IOS CLI, SSH, SNMP v2c/v3, Syslog logging, real‑time interface statistics monitoring
5. Typical Deployment Scenarios
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Long-distance inter-building campus backbone connections over single-mode fiber
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Metropolitan area network (MAN) Gigabit fiber inter-switch links
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Remote site connectivity for geographically distributed enterprise networks
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Legacy Catalyst 6500 core switch long-range fiber uplink deployments
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Spare replacement transceivers for existing GBIC‑based Catalyst switching environments
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950‑1, IEC/EN 60950‑1, CSA C22.2 No.60950‑1
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EMC Compliance: CE Mark, FCC Part 15 Class A, ICES‑003 Class A, VCCI Class A
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Laser Safety: Class 1 Laser Product per IEC 60825‑1
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Environmental: RoHS compliant, WEEE directive compliant
7. Standard Factory Package Contents
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Cisco WS-G5487 1000BASE-ZX GBIC Transceiver
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Hardware installation guide
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Safety and regulatory documentation
Note: Fiber patch cables and optical attenuators are sold separately.
End-of-Sale Status
The WS-G5487 GBIC transceiver has reached Cisco End‑of‑Sale and End‑of‑Support. Spare inventory is available through authorized spare distributors and secondary hardware markets. Recommended migration: 1000BASE-ZX SFP transceivers for modern switching platforms.
UNSPSC Classification Code
43222618 – Cisco WS-G5487 1000BASE-ZX GBIC optical transceiver, hot‑swappable long-reach single-mode Gigabit fiber module for legacy Catalyst modular enterprise switches.
Hardware Warranty
Original factory units carry Cisco limited hardware warranty; refurbished equipment follows reseller commercial warranty terms.
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