Installation; Mounting; Power Connection/Fuse/Voltage; Signal Connections - Symmetricom 8040C User Manual

Installation

Mounting

The Symmetricom 8040C mounts in standard 19-inch equipment racks, and takes up 1U
of vertical space (1.75"). The chassis depth is 12 inches. For best performance, the
operating environment should have a stable temperature. In addition, ensure that there
are no strong magnetic fields (>2 gauss) in the vicinity of the shelf since the unit 's
Rubidium oscillator is sensitive to DC and AC magnetic fields.

Power Connection/Fuse/Voltage

The Symmetricom 8040C is powered from an AC source or optionally from a 24VDC
source. (See Power Requirements, page 15). The AC fuse is located inside the AC
connector/filter on the rear panel. To change the fuse, open the cover on the rear
panel AC connector by applying a screwdriver to the connector's cover slot. Once the
cover is open, the fuse holder may be removed for inspection or replacement.
The Symmetricom 8040C/8040CLN may be powered from 90 or 240 VAC. The
8040C automatically detects the input voltage therefore no manual configuration is
required.
ELECTRICAL SHOCK HAZARD - Use a locally approved power cord or power cord
adapter for connection to the power source.

Signal Connections

Output signal cables may be connected in any order to the rear panel BNC connectors.
Figure 1: 8040C/8040CLN Standard Configuration – Rear Panel

Output Signals

The standard Symmetricom 8040C/8040CLN has six BNC output connectors. The
outputs are factory-programmed as described in Table 2.
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Rev. C, 07/12/2011