NIP6860
The NIP6860 supports AC and DC power supplies, employs an integrated chassis design, and supports dual MPUs, one SFU, multiple SPUs, and multiple LPUs.
Mapping
Table 1-4 lists the mapping between the NIP6860 and software version.
Front Panel
Figure 1-5 illustrates the front panel of the NIP6860.
No. |
Name |
Description |
---|---|---|
1 |
Air filter |
The air filters of the NIP6860 are deployed on the air intake vents of chassis air channels to protect the device against dust. |
2 |
SRU |
The Switch Router Unit (SRU) on the NIP6860 is in charge of system control and route information learning. It is the central control unit of the device. The NIP6860 SRUs work in 1:1 backup mode. When the active SRU is faulty, the standby SRU immediately takes over for it, ensuring service continuity. The NIP6860 SRU is integrated with an SFU for data switching. |
3 |
SFU |
The SFUs of the NIP6860 are responsible for the data switching of the entire system. The NIP6860 has one separate SFU. It works with the SFUs integrated in the two SRUs in 2+1 backup mode for load balancing. |
4 |
LPU/SPU slot |
Holds an LPU or SPU. |
5 |
Front cable rack |
Used for laying optical fibers and cables. |
Rear Panel
Figure 1-6 illustrates the rear panel of the NIP6860.
No. |
Name |
Description |
---|---|---|
1 |
Fan module |
The NIP6860 has two fan modules. They are deployed on the air intake vents of chassis air channels and work in 1+1 backup mode. |
2 |
ESD jack |
The equipment end of the wrist strap is inserted into the ESD jack. For the wrist strap to be effective, ensure that the device is grounded. |
3 |
Protection ground terminal |
The OT terminal of the ground cable is connected to the protection ground terminal of the device, and the other terminal of the ground cable is connected to the ground point of the cabinet or workbench or the ground bar of the equipment room. |
4 |
Rear cable rack |
Used for laying optical fibers and cables. There are two rear cable racks on the upper parts of the power modules. |
5 |
Power supply areas |
Power supply areas of the four PEMs on the NIP6860. |
6 |
PEM module |
The NIP6860 uses four PEMs for DC power supply. The NIP6860 backplane is divided into two areas, each of which has two PEM power inputs. These eight power inputs work in 2+2 backup mode. If the NIP6860 uses the AC power supply, one additional external AC power chassis is required. |
Slots Layout
Figure 1-7 shows the slot layout on the NIP6860.
Table 1-5 illustrates board slots of the NIP6860 and mapping boards.
Power Supply System
The NIP6860 supports either DC and AC power supplies (but not at the same time).
If DC power supply is used, the DC power cables are directly connected to the input terminals of the PEMB DC power module.
If AC power supply is used, an external EPS200-4850A AC power chassis is employed. The number of rectifier modules depends on the system power consumption. The AC power enclosure is connected to the PEM input to provide power for the device. That is, AC power supply uses external AC power enclosures on the basis of DC power supply.
As shown in Figure 1-8, the NIP6860 backplane is divided into two areas, each with two power inputs. These four power inputs work in backup mode.
DC power supply system
The NIP6860 uses four 70 A PEM modules that work in 2+2 backup mode for DC power supply. Table 1-7 describes the power supply solution.
DC Power Module |
Powered Area |
Powered Part |
---|---|---|
PEM-A1 PEM-B1 |
Zone1 |
|
PEM-A2 PEM-B2 |
Zone2 |
|
NOTE:
PEMs A and B back up each other. |
Figure 1-9 shows the relationships between the power modules and chassis parts. Each DC power input contains one -48 V power input and one RTN input. Two separate RTN inputs join together on the board.
AC power supply system
Table 1-7 shows the power supply architecture of the NIP6860 AC power supply system. The input AC power is output as steady DC power after being converted by the AC/DC module and being transmitted along external cables to the PEM to power all boards and fans.
AC Power Module |
DC Power Module |
Powered Area |
Powered Part |
---|---|---|---|
AC power chassis |
PEM-A1 PEM-B1 |
Zone1 |
|
PEM-A2 PEM-B2 |
Zone2 |
|
|
NOTE:
PEMs A and B back up each other. |
Figure 1-10 shows the relationships between the AC power chassis, power modules, and chassis parts. Each DC power input contains one -48 V power input and one RTN input. Two separate RTN inputs join together on the board.
Heat Dissipation System
The NIP6860 provides a dedicated fan module and a dedicated air filter and uses a unique airflow design for heat dissipation.
- The NIP6860 has altogether two fan modules located at the air exhaust for 1+1 backup. The two fan modules are deployed side by side, and each fan module has one fan. When one fan fails, the system can still work at the ambient temperature of 40°C for a short period of time. For details on the fan module, see CR52FCBH Fan Module.
- The NIP6860 has one air filter fixed at the air intake vent of the chassis with a cable-retention clip. The air filter prevents dust from entering the chassis with airflow. In addition, the air filter has a curved face with holes all around, large area, and small windage resistance, improving the heat dissipation efficiency. For details on the air filter, see Air Filter (NIP6860).
- The NIP6860 system draws air from the front and discharges air from the back. The air intake vent is above the front board slot area, and the air exhaust locates at the fan module.
Figure 1-11 shows the air flow in the NIP6860.
Technical Specifications
Table 1-8 lists the technical specifications of the NIP6860.
Item |
Description |
|
---|---|---|
Part number |
02351BQK |
|
System specifications |
||
Processing unit of the SRU |
Main frequency: 1.5 GHz |
|
BootROM capacity of the SRU |
8 MB |
|
SDRAM capacity of the SRU |
4 GB |
|
NVRAM capacity of the SRU |
4 MB |
|
Flash capacity of the SRU |
32 MB |
|
CF card |
2 x 2 GB |
|
Number of slots |
SRU |
2 (slots 9 and 10) |
SFU |
1 (slot 11) |
|
LPU/SPU |
8 (slots 1 to 8) |
|
Dimensions and weight |
||
Dimensions (widtha x depth x heightb) |
442 mm x 650 mm x 620 mm (14 U). The depth is 770 mm covering the dust filter and cable rack. |
|
Installation position |
N68E cabinet or a standard 19-inch cabinet |
|
Weight |
Empty chassis |
43.2 kg |
Full configuration (maximum) |
112.9 kg |
|
Power specifications |
||
Power supply mode |
DC |
4 hot-swappable PEMs |
AC |
4 PEMs+1 external AC power chassis |
|
Rated input voltage range |
DC |
-48 V DC to -60 V DC |
AC |
|
|
Maximum input voltage range |
DC |
-72 V DC to -38 V DC |
AC |
|
|
Typical power (Four LPUF-240s and four SPUs are configured.) |
DC |
3760 W |
AC |
4000 W |
|
Maximum power (Four LPUF-240s, and four SPUs are configured.) |
DC |
4560 W |
AC |
4850 W |
|
Heat dissipation |
||
Fan module |
2 hot-swappable fan modules, each with one fan |
|
Air flow |
Front-to-back airflow |
|
Air filter |
1 air filter in the air intake vent of the air channel |
|
Environment specificationsc |
||
System reliability |
MTBF (year) |
25 |
MTTR (hour) |
0.5 |
|
Ambient temperatured |
Long-term |
0°C to 45°C |
Short-terme |
-5°C to 50°C |
|
Storage temperature |
-40°C to 70°C |
|
Ambient relative humidity |
Long-term |
5% RH to 85% RH, no coagulation |
Short-term |
5% RH to 95% RH, no coagulation |
|
Storage relative humidity |
0% RH to 95% RH |
|
Long-term altitude |
Lower than 3000 m |
|
Storage altitude |
Lower than 5000 m |
|
NOTE:
|