Specifications

3-4
Cisco ONS 15216 EDFA2 Operations Guide
78-13908-02
Chapter 3 Installation
Communications
Note cable and connector are not provided.
Step 2 Connect the alarm cable to the alarm system contacts:
a. Cisco ONS 15454 medium-dependent interface (MDI) wire wrap pins
b. Central office (CO) alarm panel
Refer to Alarm Definitions, page 3-3 for information concerning alarm contacts. Refer to LED Alarm
Definitions and Functions, page 3-4 for information on the ONS 15216 EDFA2 alarm LEDs.
LED Alarm Definitions and Functions
The ONS 15216 EDFA2 has five LEDs
• POWER
• FAIL
• LOS
• Ethernet (2)
Three of these LEDs, POWER, FAIL, and LOS, are located at the left hand side of the ONS 15216
EDFA2 box. The two Ethernet LEDs are located at the top left and right hand sides of the Ethernet
socket. When the module is powered on, an LED test is performed.
POWER LED (Green)
The POWER LED is green. This LED functions as follows:
• On: –48 VDC is within tolerance. (Power BUS A and B are powered normally.)
• Off: No power or power is out of tolerance from the internal power supply. (Power BUS A and B
are not powered.)
• Flashing: Power BUS A or B (in duplex mode) has failed or is out of tolerance, or power BUS A
(in simplex mode) is out of tolerance.
In the off condition, the first pair of alarm relay contacts in the RJ-45 connector changes from a normally
open condition to a closed condition. The LED and alarm automatically reset when the condition clears.
(For additional alarm contact closure information, see the “Alarm Relay Contacts (RJ-45)” section on
page 3-3.)
FAIL LED (Red)
The FAIL LED is red. This LED functions as follows:
• On: The pump laser bias, pump laser temperature, output power, gain, or case temperature is out of
tolerance. (A major internal failure has occurred.).
• Off: The pump laser bias or pump laser temperature is in a specified range.
In the on condition, the second pair of alarm relay contacts in the RJ-45 connector changes from a
normally open to a closed condition. If an invalid input optical signal is applied to the ONS 15216
EDFA2, the Fail LED is illuminated. The LED and alarm automatically reset when the condition clears.