Overview
Cross connects at Expedient are dedicated, point-to-point connections within a data center, utilized for connecting a carrier circuit to your equipment in your colocation cabinet.
Optics
1G Options
LX: Single-mode fiber (SMF)
SX: Multi-mode fiber (MMF)
10G Options
SR: Multi-mode fiber (MMF)
LR: Single-mode fiber (SMF)
Wavelengths
MMF: 850 nm
SMF: 1310 nm
Fiber Options and Specifications
Single-Mode Fiber (SMF)
Color: Yellow
Usage: High-speed, long-distance links
Characteristics: Small core for higher bandwidth, suitable for Telco applications
Multi-Mode Fiber (MMF)
Orange (62.5 micron): Common for 1G connections
Aqua (50 micron): Used for 10G intra-datacenter server connections
Characteristics: Suitable for short distances and robust environments
Connector Types
SC Connector: Subscriber Connector with push-pull mechanism, used for bi-directional communication
LC Connector: Miniaturized SC connector with a smaller ferrule
Optical Equipment
SFP Modules:
MMF: SX at 850 nm, up to 550m at 1.25 Gbit/s
SMF: LX/LH at 1310 nm, up to 10 km
Further Options: ZX, EX, CWDM, and DWDM for varying distances
Demarcation Point (Demarc)
The interface where the public network ends and connects to the customer’s wiring
Establishes responsibility boundaries between the customer and provider
Typically located in a building's basement, also known as MPOE (Minimum or Main Point of Entry)
Vendor Visits and Access
Carrier technicians have open access as needed, though scheduling visits in advance is appreciated. If technician details aren't available, this is not an issue.
Standard Cabling Colors
SMF (Single-Mode Fiber): Yellow
MMF (Multi-Mode Fiber): Aqua
Cat6/Copper Structured: Blue
Cat6/Copper Patch Cables: Yellow Slimline
Installation Requirements
Attach the local carrier LOA document to the ticket once ready.
Specify the cabinet number for circuit termination.
Provide any relevant installation directions.
Additional Information
Expedient will attempt to locate the circuit upon receiving the LOA.
Materials will be ordered for installation if no issues arise, with custom-length cable extensions tailored to the project.
Estimated completion time is 7 business days once materials are received.
If the circuit cannot be located, the client must contact the carrier for a tag & locate dispatch.
Letter of Authority (LOA)
Purpose: Grants permission for cross-connect installation in the data center.
Contents: Precise location details, cabinet information, patch panel specs, media type, and instructions.
Benefits: Ensures accurate installation and serves as a reference for potential disputes, protecting the data center and contractor from liability.
This comprehensive guide outlines the specifics and procedures for cross connects at Expedient, ensuring efficient and reliable network extensions within our data center environments.