ADTRAN 550 Supplying Power to the Unit, Mounting Options, Reviewing the Rear Panel Design

Chapter 2. Installation

SUPPLYING POWER TO THE UNIT

The AC powered ATLAS 550 comes equipped with a detachable 8-foot pow- er cord with a 3-prong plug for connecting to a grounded power receptacle. As shipped, the ATLAS 550 is set to factory default conditions. After install- ing the Base Unit and any option modules, the ATLAS 550 is ready for pow- er-up. To power-up the unit, ensure that the unit is properly connected to an appropriate power source and turn on the unit using the on/off switch on the rear panel.

•This unit shall be installed in accordance with Article 400 and 364.8 of the NEC NFPA 70 when installed outside of a Restricted Access Location (i.e., central office, behind a locked door, service personnel only area).

• Power to the ATLAS 550 must be from a grounded 90-240 VAC, 50/60 Hz source.

•The power receptacle uses double-pole, neutral fusing.

•Maximum recommended ambient operating temperature is 40oC.

MOUNTING OPTIONS

The ATLAS 550 Base Unit may be installed for tabletop, 19-inch or 23-inch rackmount, or wall-mount configuration. ADTRAN includes 19-inch rack- mount ears with the Base Unit (23-inch rackmount ears are sold separately). For a rackmount installation, the ATLAS 550 Base Unit allows flush-face mount, face-forward mount, center mount, and rear mount. The rackmount ears may also be turned face down for wall-mounting. When wall-mounted, the ATLAS 550 Base Unit may be installed with either side up and the front and rear panels facing sideways.

Be careful not to upset the stability of the equipment mounting rack when installing this product.

REVIEWING THE REAR PANEL DESIGN

The ATLAS 550 rear panel contains four slots for housing option modules which provide a variety of additional resources and data ports. All slots are functionally identical. The ATLAS 550 also contains two slots for housing network interface modules (see Figure 2-1 on page 2-4).

61200305L1-1 ATLAS 550 User Manual 2-3