Manual

9101 LAN Chassis Canoga Perkins

Chapter 4 - Troubleshooting

4.1 Mechanical

The 9101 LAN Chassis is designed in conformance with ANSI/EIA Standard RS

310-D for 19-inch relay racks and installs easily in any compliant relay rack. Should

you experience difficulty installing the unit, verify that the relay rack meets the

above standard.

4.2 Electrical

The 9101-1, 2, 3 or 4 Powered LAN Chassis is designed to hold up to twelve 8829

UTP-to-Fiber Optic Media Converters or 9119 100BASE-T Fiber Optic Converters

or non chassis-powered 8814 Transceivers. As discussed earlier, all 8814s installed

in any 9101 LAN Chassis will be powered by the AUI interface of the attached

device. The media converters, however, take their power from the 9101 LAN

Chassis power distribution module as discussed in Section 3.2.

This section discusses troubleshooting the 9101 Powered LAN Chassis and media

converters as they relate to power issues.

Step 1:

Ensure that each 9101 LAN Chassis Power Supply unit is connected to an appropri-

ate AC or 48 VDC supply and that the associated power supply LED indicator

located on the front panel is on. In addition, ensure that each media converter is

connected to the power distribution board with the appropriate pigtail cables.

Step 2:

If the 9101 LAN Chassis power supply indicator and the media converter power

indicator (PWR) are illuminated, and you are experiencing problems, refer to the

8829/9119 Media Converter User Manuals, Section 3 ("Operation") and Section 4

("Troubleshooting"), for further diagnostic information.

Problem: The power supply indicator(s) on the 9101 LAN Chassis does

not illuminate.

Solution: If an AC power supply has been ordered, verify that the AC cord

is plugged in and that AC power is available. If a -48VDC unit

has been ordered, verify that the -48VDC Canoga Perkins power

supply is correctly attached according to the polarity of the

48VDC source and that DC voltage is available.