MX2008 High-Voltage Universal (HVAC/HVDC) Power System

In the high-voltage second-generation universal (HVAC/HVDC) power configuration, the MX2000 router contains two high-voltage universal (MX2K-PDM-HV) PDMs located at the rear of the chassis in slots PDM0/Input0 and PDM1/Input1 (bottom to top). A minimum of one PDM is required per system (two PDMs per chassis) for nonredundant power. The universal (HVAC/HVDC) PDMs provide power interface to nine power supply modules (PSMs).

Two PDMs provide full redundancy for the router. In a redundant configuration, a total of a total of eighteen (9-feed PDMs) are supported.

Each high-voltage universal (HVAC/HVDC) PDM has nine (HVAC/HVDC) inputs, (see Figure 1).

Figure 1: MX2000 High-Voltage Universal (HVAC/HVDC) PDM

Each universal PDM faceplate contains one LED for each of the nine input power feeds, indicating the correct or incorrect polarity connection of each feed. See Table 1 and Figure 2 high-voltage universal (HVAC/HVDC) PDM LEDs.

Figure 2: High-Voltage Universal (HVAC/HVDC) Power Distribution Module LEDs

1 — LED

The MX2008 supports a universal HVAC/HVDC power system. The HVAC/HVDC power system operates with nine feeds. A total of nine feeds are required to fully power the MX2010. Another nine feeds are required to provide feed redundancy (a total of 18 feeds In the HVAC/HVDC power configuration, the router contains up to nine HVAC/HVDC PSMs located at the rear of the chassis in slots PSM0 through PSM8, (left to right). The HVAC/HVDC PSMs in slots PSM0 through PSM8 provide power to the all router components including MPCs in slot 0 through 9, CB-REs in slot 0 and 1, SFBs in slot 0 through 7, and fan trays 0, 1, 2, and 3.

Up to nine PSMs may be connected in parallel to increase available system power across MPCs as needed and provide redundancy. Figure 3 shows the universal PSM.

Figure 3: High-Voltage Universal (HVAC/HVDC) Power Supply Module

The HVAC/HVDC power system is feed redundant. Each universal PSM can be connected to two separate feeds from different sources that are used to provide feed redundancy. The PSM has two independent power trains connected in parallel at the output while each input is connected to its own feed. Power always is drawn from both feeds. There are two PDMs per power system capable of carrying nine feeds each. The bottom PDM in each power cage provides power to INP0 of all PSMs installed in the cage, while top PDM in each power cage provides power to INP1 of all PSMs installed in the cage. Feed connection to the PDMs should be done according to standard TIA-942 “Telecommunications Infrastructure Standard for Data” depending on tiering level. The primary input of the PSM is a dual-redundant feed, INP0 and INP1. Both feeds are active during operation, and always carry current. Two dual-position DIP switches accessible from front panel indicate whether respective input INP0 or INP1 is expected to be connected or not. Set the input mode DIP switch to the on or off position to determine the power supply feeds (see Table 2 and Figure 4). In addition, a PSM failure triggers the alarm LED on the craft interface. Each PDM has an LED per feed indicating whether the feed is active or not, or whether the feed is connected properly. See MX2008 High-Voltage Universal (HVAC/HVDC) Power Supply Module Description.

Figure 4: Selecting the Input Feed on the Universal (HVAC/HVDC) Power Supply Module

The universal HVAC/HVDC PSM has one more (third) DIP input switch accessible from the front panel, see Figure 4. This switch indicates the system is using the universal (MX2K-PDM-HV) PDM that has 30 A rated power cord. This should be in the ON position.

Each high-voltage second-generation universal (HVAC/HVDC) PSM faceplate contains four LEDs. These LEDs are shown in Figure 5 and Table 4. Nine bicolor LEDs, labeled 0 through 8 for the nine PSMs, are located in the center of the craft interface.

The primary input of the PSM is a dual redundant feed, INP0 and INP1. Both feeds are active during operation, and both feeds share the load current when present. In addition, a PSM failure triggers the alarm LED on the craft interface.

Figure 5: MX2000 High-Voltage Universal (HVAC/HVDC) Power Supply Module LEDs

Table 5 lists the FRU power requirements for SFBs, RCBs, MPCs, and MICs. In addition, Table 5 lists the MPC power requirements with MICs and optics at various operating temperatures.

Typical power represents power under certain temperatures and normal operating conditions.

If you do not plan to provision as recommended above, you can use the information inTable 5 to calculate the power consumption for your hardware configuration.

Table 6 provides specifications and plug standards for the AC (20-input and 16-input) power cord applicable to the universal (HVAC/HVDC) PDMs.

Table 7 provides specifications and connectors on the 30-A power cord provided for each country or region applicable to the universal (HVAC/HVDC) PDMs.

For the HVAC/HVDC power cord one end of the cable has an SAF-D-Grid 400 connector, the other end of the cable is bare wire. See Figure 6 and Table 7. These cables are separately orderable and are not shipped automatically with the MX2K-PDM-HV orders. An example of the bare wire cable and connector is shown in Figure 6.

For connection to AC systems, Juniper provides a cable with either a NEMA 30-A connector (Figure 7).

Figure 6: Bare Cable with Anderson Connector

1 — Black wire–Positive (+)	3 — White wire–Negative
2 — Green wire-Ground

Figure 7: NEMA L6-P30 Connector

Figure 8: IEC 330P6W Connector

Warning:

Translation from Japanese: The attached power cable is only for this product. Do not use the cable for another product.

Table 8 lists the high-voltage second-generation universal power subsystem electrical specifications.

The circuit breaker protection on all the power supplies should be designed according to National Electrical Code (NEC) of country of system installation or any similar local standard based on maximum drawn current of the power supply specified in this document.

Each high-voltage universal (HVAC/HVDC) PSM has dual feeds. The input AC or DC receptacle inlet is located on front panel of the PDM.

Each power cord feed should have dedicated circuit breakers. We recommend that size of the circuit breaker protection should be designed according to National Electrical Code (NEC) of country of system installation or any similar local standard based on maximum drawn current of the power supply specified in this document.