Chapter 1 Shelf And Backplane Hardware - Cisco ONS 15600 Reference Manual

1.2 Bay Installation
installed. The front door of the ONS 15600 SDH allows access to the shelf assembly, fan-tray assembly,
and cable-management area. The customer access panel (CAP) or customer access panel version 2
(CAP2) on the back of the shelf provide access to alarm contacts, external interface contacts, and timing
contacts. Power and ground terminals are located on the top left and right sides of the bay.
Voltage to the alarm circuits should not exceed –48 VDC.
Caution
The ONS 15600 SDH comes mounted in a custom, certified NEBS-2000 rack. The bay assembly,
including the rack, fan trays, and PDU weighs approximately 500 pounds (226.8 kg) with no cards
installed.
ONS 15600 SDH STM-N cards have OGI connectors on the card faceplate; available connector
termination types are SC, ST, and FC. Fiber optic cables are routed to the front of the STM-N cards.
The ONS 15600 SDH is powered using –48 VDC power but may range from –40.5 to –72 VDC. Input
power is accessible from the sides of the bay, and output power is accessible at the rear of the bay. Cisco
supports dual office-power feeds only.
Install the ONS 15600 SDH in compliance with your local and national electrical codes:
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1.2 Bay Installation
In this chapter, the terms "ONS 15600 SDH" and "bay assembly" are used interchangeably. In the
installation context, these terms have the same meaning. Otherwise, bay assembly refers to the physical
steel enclosure that holds the shelves and power distribution unit (PDU), and ONS 15600 SDH refers to
the entire system, both hardware and software.
To install the ONS 15600 SDH, you must first unpack the bay assembly. Two custom ramps and two
dollies are available to assist you with the removal of the bay from the shipping pallet and transportation
to the installation location.
Cisco ONS 15600 SDH Reference Manual, Release 9.0
1-2
United States: National Fire Protection Association (NFPA) 70; United States National Electrical
Code
Canada: Canadian Electrical Code, Part I, CSA C22.1
Other countries: If local and national electrical codes are not available, refer to IEC 364, Part 1
through Part 7.
Figure 1-1 shows the bay assembly with the dollies installed.

Chapter 1 Shelf and Backplane Hardware

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