CANOGA PERKINS 2346 T3 Fiber Optic Modem - Manual (Page 11)

EdgeAccess Universal Chassis System
2346 T3 Modem 2-3
Caution: To avoid damaging the fiber end-surface or connector, use extreme care when
installing or removing cables.
10. Plug in the optical cables:
• If you have a simplex optical connector, use a single strand, single mode fiber cable between
a pair of 2346 modems, one at 1310 nm wavelength and the other at 1550 nm wavelength.
• If you have a duplex connector, use Tx to Rx, and Rx to Tx orientation.
11. Label each cable and connector with a signal name and direction.
12. For cable connections to other modules in the chassis, see the appropriate user manual for details.
13. Measure and record fiber link attenuation and transmission power before starting normal link
traffic in order to identify potential problems with links near the lower limit of receiver
limitations. For details on link attenuation and transmission power, see Chapter 4.
Power Up and Front Panel Functions
During the initial power-up sequence, all LEDs light amber. When start-up is complete and data is
transmitting normally across the link, the STA LED lights green and the CFG/TST, LOS, and CLS
LEDs are off. During normal operation, the LED colors change according to system and port
conditions. The STA and CFG/TST LEDs show the module condition. The LOS and CLS LEDs
show the electrical and optical signal conditions. Table 3 shows the LED states for various
conditions.
Table 1. 2346 LED Functions
LED Status Description
STA Off No power
Green Normal operation
Amber System self-test
Amber blinking Downloading file or in power-up cycle
Red Failed system self-test
CFG/TST Off Normal operation
Red Software or line coding mismatch between local and remote
modems or improperly connected fiber optic cable
Amber Local or local bidirectional loopback
Amber blinking Remote or remote bidirectional loopback
LOS Off Normal operation
Red Local loss of electrical signal
Red blinking Remote loss of electrical signal
CLS Off Normal operation
Red Local loss of optical sync
Red blinking Remote loss of optical sync