FINAL DRAFT - CISCO CONFIDENTIAL
3-7
CiscoONS 15216 EDFA2 Operations Guide
78-16033-01
Chapter3 Installation
Communications

3.5.2.3 LOS LED (Yellow)

The loss of signal (LOS) LED is yellow. This LED functions as follows:
•On: The optical input power to the ONS 15216 EDFA2 is below the loss of input threshold. (A LOS
threshold decision occurs.)
•Off: The optical input power is within the input threshold (or no –48 VDC power is present).
In the on condition, the third pair of alarm relay contacts in the RJ-45 connector changes from a normally
open condition to a closed condition. The LED and alar m automatically reset when the condition clears.

3.5.2.4 Ethernet Socket LEDs

Two LEDs are located at the top left and right sides of the Ethernet socket. These LEDs ar e both green.
These LEDs function as follows:
•If left Ethernet socket LED is on, the link is up.
•If right Ethernet socket LED is on or flashing, ther e is Ethernet traffic.
3.5.3 Serial Interface (EIA/TIA-232) Communication
This section describes communication with the ONS 15216 EDFA2 using a serial connection.

3.5.3.1 Required Equipment

Establishing a serial communications link with a ONS 15216 ED FA2 requires the equipment listed in
Table 3 -3.

3.5.3.2 Serial Connection Procedure

To set up an EIA/TIA-232 link to the ONS 15216 EDFA2, use the following procedure. (The procedure
uses HyperTerminal and a connection via the COM1 port.)
Step 1 Connect the DB-9F end of the EIA/TIA-232 data cable (straight cable, user provided) to the laptop COM
port.
Step 2 Connect the DB-9M end of the EIA/TIA-232 data cable to the RS-232 (EIA/TIA-232) ser ial port
connection on the front panel of the ONS 15216 EDFA2.
Step 3 Open HyperTerminal. (HyperTerminal can be found in the Microsoft Windows Accessories menu.)
Step 4 Type Optical Amplifier, select an icon, and click OK.
Table3-3 Equipment Checklist
Hardware Comments
Laptop or computer running a Terminal
application.
User-provided. HyperTerminal can be found in the
Microsoft Windows Accessories menu.
EIA/TIA-232 cable with DB-9F/DB-9M
connectors wired as shown in Figure 3-8 on
page3-14.
Provides EIA/TIA-232 link to ONS 15216 EDFA2.