ADTRAN DUAL Nx56/64 1200142L1# - Manual (Page 19)

Chapter 2. Installation
61200054L2-1 Nx56/64 (EIA-530) Option Module User Manual 2-3
Power Connection
Each option module derives power from the base TSU 100
unit. Power to the TSU 100 is supplied by a captive eight-
foot power cord.
Attaching the Plug-on Board
Figure 2-2 shows the proper attachment of a plug-on
board to the option module. Perform the following steps
to install the plug-on board:
1. Hold the plug-on board above the option module.
2. Using a downward and right to left motion, slip the
DTE connector plug into the opening in the option
module back panel.
3. Move the plug-on board downward then secure the
connection of the header pins at the front of the
boards.
4. Install the two 4-40 screws at both edges of the
option module.
Figure 2-2. Attaching the Plug-on Board
PORT X.1 EIA 530
PORT X.2/X.3
The connection of the header pins between the option module and the
plug-on board must be visually verified. An improper connection
can damage the equipment.