User's Manual

Chapter 2 — Identifying the Option 11C Mini equipment Page 31 of 332
Option 11C Mini Planning and Installation Guide
Figure 4 shows the connectors on the back of the Chassis Expander.
Figure 4
Connectors on the back of the Chassis Expander
Cooling
The NTDK91 Main Chassis and the NTDK92 Chassis Expander have forced
air cooling. As a result, you can install the chassis in a horizontal or vertical
position. The fan inside the chassis is controlled by heat. It runs at a reduced
speed at room temperature.
Power supply
The Option 11C Mini universal power supply uses AC input. The power
supply is factory installed in the chassis. The power supply is not customer
replaceable. The Option 11C Mini system does not support DC input.
CAUTION
Do not block chassis ventilation.
25-pair
connectors
DS-30X
connector
CE-MUX
connector
Power cord
connector