Lucent Technologies WaveStar OLS 40G, Installation Manual

Page: 493 / 578

Issue 1.0 March 2001
12-21
365-575-389
Installation Manual Troubleshooting
Troubleshooting Information
Introduction The following sections are referred to by other procedures throughout this manual.
CMC Connection
Requirements This paragraph describes the minimum requirements for the physical connection
between the CMC PC and the WaveStar OLS 40G.
Figure 12-1 on page 12-22 shows the minimum cabling needed. The RS-232
control lead values are listed for the DCE (user panel) and DTE (backplane)
connectors. The WaveStar OLS 40G terminal does not change these control lead
values or do any active handshaking during communications sessions. The CMC
program does actively handshake as follows:
■
When a carriage return is entered from the product selection menu of the
CMC program prior to the login screen, the PC DTR and RTS leads go
high.
■
After the DTR and RTS leads are set to high the CMC program expects the
CTS and DSR leads to go high.
If the CTS and DSR leads do not go high on the correct COM port then the CMC
program will immediately issue a “Communication with the NE cannot be
established” error message. If the error message is reported after several
seconds then the handshaking is probably correct and the problem is with the
data transmission being corrupted. If a local area network is used to connect the
CMC PC to the WaveStar OLS 40G, XON/XOFF handshaking must be disabled at
both ends of the network connection.
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