The Juniper Networks CTP2056 Circuit to Packet platform can have up to seven removable interface modules and one removable processor module, and is available in both AC-powered and DC-powered versions. It has a removable fan tray, and airflow is side-to-side. Figure 1, Figure 2, and Figure 3 show the CTP2056 chassis containing the PP332 processor (which requires an RTM card for Ethernet and console port accesses). The new PP833 processor module does not require an RTM card. All PP833 module access is located on the front panel with all CTP serial and T1/E1 ports. If you are upgrading from the old PP310 or PP332 processor to the PP833 processor, the RTM card may be left in the node. But, none of the interfaces (Ethernet or serial ports) on the RTM panel are functional.
The front panel comprises the following components (see Figure 1):
Interface modules—Frame processing and forwarding engines.
Processor module—Two slots are available on this module for an optional fiber Gigabit Ethernet or Fast Ethernet PMC module. The primary SC connector is on the left side. For more information about the PMC module, see CTP2000 PMC Module and Installing a PMC on CTP2000 Platforms.
Power supply extractor—Push the button to eject the power supply module.
Fan tray and air filter.
Clock module—Provides clock distribution between modules when the backplane is in use by voice applications.
Power supply—Use a standard IEC power cord for the AC version. Use a 22-AWG fork terminal connector for the DC version. Power redundancy is supported for the AC version and the DC version. A single IEC power cord is sufficient to connect the redundant AC power supply modules, which keeps the chassis turned on in the event of failure of one of the power supplies.
There are no power switches on CTP2000 Series DC models, so a readily accessible disconnect device must be provided as part of the electrical installation of the unit. We recommend the 22-AWG wire for DC power terminals.
Ethernet connection—Provides the 1-Gbps Ethernet connection to the IP network by means of a local Ethernet switch or router.
Console connection—Provides an asynchronous tty connection for locally configuring the CTP Series device. On the PP310 and PP332 processors, you can connect a console directly to the COM2 port (which is an RJ-45 type connector) found on the RTM panel.