2 POWER SUPPLIES
For type approval reasons, this product should not be operated with unapproved
supplies.
2.1. POWER SUPPLY OPTIONS
The SDB680 Base Station is only available as a DC version, which uses an external DC
power source. The PSU tray can be used to supply the DC voltage required.
The switch mode supplies used in the wall mount and rack mount ancillaries are able
to accept mains AC voltage in the range of 85 V to 265 V @ 1.9 A, 47 Hz to 63 Hz. The
output from the switched mode power supply to the SDB680 Base Station is +14.1
Voltage Direct Current (VDC).
2.2. PSU TRAY
The PSU Tray can be either a 1U or 2U rack tray with a front panel and is designed for
use with an SDB680 Base Station in an enclosed 19” rack. Together, an SDB680 Base
Station and the PSU Tray occupy a total of either 3U or 4U of rack space.
The tray is supplied complete with a universal power supply, which can accept an IEC
input of 100 V to 240 V AC (Voltage Alternating Current), at 50/60 Hz suitable for a
single SDB680 Base Station. The voltage range appropriate to the area of use is
selectable on the universal PSU.
The equipment must be installed so that the IEC connector of the PSU Tray for the
Wall or Rack Mount installations can be easily removed and/or the power socket
should be readily accessible.
Mains protective Earth should be checked for low impedance (<0.3 Ω).
All mains wiring must comply with local wiring regulations.
2.3. AC POWER CORD
A 2 m long cable is used to connect the AC Mains Supply to the PSU tray in the rack
mount. An appropriate version of power cord, relevant to the area of use, is supplied
with the PSU Tray. Relevant areas of use are as follows:
United Kingdom.
Rest of Europe.
United States.
Doc Number: TNM-I-E-0046 ISSUE 1.2 Page 27
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