Black Box ServSwitch DKM FX User Manual

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CHAPTER 7: TROUBLESHOOTING
7.6 FAILURE AT THE MATRIX
TABLE 7-6. FAILURE AT THE MATRIX TROUBLESHOOTING TIPS
PROBLEM POSSIBLE REASON POSSIBLE SOLUTION
Serial control impossible or only
restrictedly possible
CPU and matrix operating
at different baud rates
Change baud rate in the matrix and CPU (see Section 4.3.2)
Serial control via RS-232 port not possible Wrong network cable Use a crossed network cable
Port definitions as USB 2.0 invalid
Restart of the matrix not yet
completed
Restart the matrix
7.7 BLANK SCREEN
FIGURE 7-1. LEDS ON THE BACK AND FRONT.OF THE UNIT
TABLE 7-7. BLANK SCREEN TROUBLESHOOTING TIPS
PROBLEM POSSIBLE REASON POSSIBLE SOLUTION
Monitors remain dark after switching
operation
Switching to a CPU port without
an active source (computer, CPU)
Switching to a CPU port with an active source (computer,
CPU)
LED 1 ON or LED 2 OFF
Connections CON unit, matrix
and CPU unit
Check connected cables and connectors. (No cable, cable
break, CPU/CON unit offline, CPU/CON unit connected to the
wrong port)
LED 3 OFF Power supply
Check power supply units and the connection to the power
network

Black Box ServSwitch DKM FX Specifications

General

Brand	Black Box
Model	ServSwitch DKM FX
Category	Matrix Switcher
Language	English