Nortel SONET AccessNode Manual page 103

Procedure 4-2 (continued)
Connecting the network element to the system
Step
2
3
Connecting the optical fibers and cleaning up
4
Action
To verify that the basic system is working properly, bring up the login screen
at the VT100 terminal, by pressing the Break key.
The command interpreter (CI) pre-login screen appears, with the following
prompt:
?
This verifies the presence of the NE software load. It also verifies the
communications path from the user terminal, through the LCAP to the MIC.
If the CI prompt is not displayed:
• verify the communications path from the user terminal to the LCAP
• check that the MIC is operational by checking its LEDs on the MIC
Log in to the network element user interface (NEUI). If necessary, see
Network Element User Interface Description , 323-3001-300, in Operations,
Administration, and Provisioning, Volume 4A.
The Network Element Status screen appears.
Before connecting optical fibers, read the following Caution.
CAUTION
Risk of receiver damage
Received optical power must not exceed − 9.0 dBm and
− 6.0 dBm for the long-reach (LR) OC-3 and OC-12 optical
interface circuit packs respectively. Received optical power
must not exceed − 6.0 dBm and − 2.0 dBm for the
intermediate-reach (IR) OC-3 and OC-12 optical interface
circuit packs respectively.
See Tables 9-1 through 9-5 in Site Installation Planning and
Engineering , 323-3001-200 in the Engineering,
Configuration, and Ordering Guide , Volume 1.
If the optical loop is very short, insert attenuation between
the OC-3/OC-12 transmitter and receiver, to limit the
received optical power to a safe level (for example,
− 15 dBm).
No damage levels exist for NT7E01 IR and LR, NT7E02 IR
and NT7E05 IR, and LR optical interfaces.
—continued—
AccessNode Site Testing Procedures 323-3001-221 Issue 2.0
Preparing for system integration 4-7