Note -
Read and understand the instructions in this chapter before starting the maintenance
work. Also see the contents of "Chapter 1 Before Starting Maintenance Work."
Table 27-1
Types of maintenance for the XSCF DUAL control cables
Configuration Active/hot Active/cold Inactive/hot Inactive/cold System stopped
Build in g block confi g u rat io n
(without crossbar box)
Supported (*) Supported Supported Supported Supported
Build in g block confi g u rat io n
(with crossbar box)
Supported (*) Supported Supported Supported Supported
*: The XSCF must be configured as a slave before maintenanceis started. If it is operating as the master XSCF, switch it to a standby
XSCF.
Table 27-2
Maintenance flow
Task Replacement
1 Preparation 27.3
2 Removing the XSCF DUAL control cables 27.4
3 Installing the XSCF DUAL control cables 27.5
4 Restoring the system 27.6
27.2 Before Maintaining an XSCF DUAL
Control Cable
This section describes the types and the flow of the maintenance of the XSCF DUAL
control cables.
27.2.1 Types of maintenance
Table 27-1 lists the types of maintenance for the XSCF DUAL control cables. For the
definition of maintenance, see "4.3 Understanding Types of Maintenance."
27.2.2 Maintenance flow
Table 27-2 lists the sequence of the maintenance procedure for the XSCF DUAL
control cables.
Chapter 27 Maintaining the XSCF DUAL Control Cables 415