ADTRAN 1200310L1, User Manual, Page: 14 / 34

Chapter 1. Introduction
1-2 Octal and Quad FXO Modules User Manual 61200310L1-1
Physical Description
The Octal and Quad FXO Modules plug into any available option slot in the
rear of the ATLAS 550 chassis. Figure 1-1 shows the Octal FXO Module.
Figure 1-1. Octal FXO Module
The labels over the modular connectors refer to the corresponding ports on
the Octal and Quad FXO Modules.
1
OCTAL FXO
2
3
4
5
6
7
8
500 Series