Specifications

3-2
Cisco ONS 15216 EDFA2 Operations Guide
78-13908-02
Chapter 3 Installation
Communications
• Reduced Air Flow—Installation of the equipment in a rack should be such that the amount of air
flow required for safe operation of the equipment is not compromised.
• Mechanical Loading—Mounting of the equipment in the rack should be such that a hazardous
condition is not achieved due to uneven mechanical loading.
• Circuit Overloading—Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent
protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be
used when addressing this concern.
• Reliable Earthing—Reliable earthing of rack mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit
(i.e., use of power strip etc.).
Rack Installation and Power Supply Procedures
Warning Before performing any of the following procedures, ensure that the power is removed from the DC
circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the
DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position.
Follow these steps to install the ONS 15216 EDFA2 into the rack and correctly set up the power supply:
Step 1 Mount the ONS 15216 EDFA2 in the rack (19 inches or 23 inches reversible ears). Empty rack space is
not required above or below the ONS 15216 EDFA2.
Step 2 Connect the –48 VDC power cable to the office fuse panel (user-provided).
a. 1.0A fusing required (user-provided).
b. Use 18 AWG stranded wire (and wire and wire lugs as appropriate).
Step 3 Connect power bus A from the fuse panel to the power terminals on the front of the ONS 15216 EDFA2.
(The power terminals are located on front right side of the module). See Figure 3-1.
Step 4 Repeat Step 3 for power bus B.
Step 5 Connect the facility ground to the ONS 15216 EDFA2 side or rear panel ground using #10/32 star washer
and 3/4-inch screws (provided on the module).
Step 6 Insert 1.0A fuses into the fuse panel (user-provided).
LEDs should now be illuminated on the ONS 15216 EDFA2.
Communications
The ONS 15216 EDFA2 can communicate in three ways:
• Alarm relay contacts (RJ-45)
• Serial interface (RS-232)