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JUNOS 10.4 Protected System Domain Configuration Guide
Management Module
Switch Module
Media Tray
Power Supply Modules
22
The JCS management module is a hot-swappable module that you use to configure and
manage JCS components. The JCS chassis comes with one hot-swappable management
module in management module slot 1. To provide redundancy, you can add a second
management module in management module slot 2. Only one management module is
active. The other is a backup in case of failure. Each JCS management module has a
separate internal link to each JCS switch module. See Figure 10 on page 22.
Figure 10: JCS Management Module
You can access the JCS management module CLI through a local connection to the serial
port on the JCS management module. Or, you can access the CLI from a remote network
management station on the network through the console (Ethernet) connector.
The JCS switch module connects Routing Engines on the JCS1200 platform to a T Series
router and controls traffic between the two devices. The JCS chassis comes with one
hot-swappable switch module in switch module slot 1. To provide redundancy, you can
add a second switch module in switch module slot 2.
The media tray is a hot-swappable module that provides two USB connectors for use
by the Routing Engines, error LEDs, an ambient air temperature sensor and a pressure
sensor for use by the JCS management module, and two CompactFlash card slots. Junos
OS is preloaded onto each Routing Engine. The media tray USB ports are used to copy
new Junos OS packages onto Routing Engines. See Figure 11 on page 22. The JCS chassis
comes with one hot-swappable media tray in media tray slot 1. To provide redundancy,
you can add a second media tray in media tray slot 2.
Figure 11: JCS Media Tray
The JCS chassis is configured with four hot-swappable power supply modules. The power
supply modules in slots 1 and 2 supply power to Routing Engine slots 1 through 6, media
trays 1 and 2, management module slots 1 and 2, and switch module slots 1 and 2. Power
supply modules in slots 3 and 4 supply power to Routing Engine slots 7 through 12.
Copyright © 2010, Juniper Networks, Inc.
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