ZXMP S360

1.1 Cabinet composition

The ZXMP S360 equipment adopts a standard ETSI cabinet+equipment sub rack structure, and the cabinet is a closed structure with excellent electromagnetic shielding performance and good heat dissipation measures.

1.1.1 Cabinet Structure

The height of the ZXMP S360 equipment cabinet comes in three specifications: 2000mm, 2200mm, and 2600mm. The appearance and structure of the three cabinets are similar. The doors of the 2000mm and 2200mm cabinets are single doors, while the doors of the 2600mm cabinet are double doors.

1.1.2 Cabinet configuration: 2000mm and 2200mm cabinets can be equipped with one ZXMP S360 equipment subrack (with fan plug-in box), one power alarm unit, and one dust prevention unit each; The 2600mm cabinet can be configured with up to two ZXMP S360 equipment sub racks (with fan sockets). In the case of a dual rack configuration, two dust prevention units and one power alarm unit must also be configured. Decorative panels can be installed on the parts of the cabinet where sub rack units are not installed.

1.2 Cabinet structural components

1.2.1 Cabinet

The ZXMP S360 equipment cabinet is a 19 inch cabinet that complies with ETSI standards. The cabinet is made of stainless steel material and has excellent electromagnetic shielding and heat dissipation performance.

The height of the ZXMP S360 equipment cabinet comes in three specifications: 2000mm, 2200mm, and 2600mm. The external dimensions are 2000/2200/2600mm (height) x 600mm (width) x 300mm (depth).

2.1 Subrack ZXMP S360 equipment subrack is a 19 inch subrack that complies with ETSI standards, with external dimensions of 933mm (21U) (height) × 482.6mm (width) × 269.5mm (depth), and an empty subrack weight of 35kg. The installation position of ZXMP S360 equipment subrack in the cabinet

The ZXMP S360 subrack consists of four parts:

1. Backboard: Backboard is the carrier that connects various single boards and also serves as the interface between ZXMP S360 equipment and external signals

Connection interface.

The upper part of the backplane is the sub rack interface area, which concentrates the non business interfaces of the equipment to the outside world.

The lower part of the backplane corresponds to the position behind the sub rack plug-in area, and is equipped with a single board connection socket. Each single board is connected to various buses on the backplane through the socket.

2. Insertion area: The sub rack insertion area is a double-layer structure used for inserting single boards of ZXMP S360 equipment. 3. Wiring area: In the ZXMP S360 equipment sub rack, there are two wiring areas, upper and lower, used for single board surface

The cables and optical fibers led out of the board provide a pathway for wiring.

The wiring area of the sub rack is equipped with detachable barriers to protect the cables, making the sub rack neat and beautiful after wiring.

4. Fan plug-in box: The fan plug-in box is located at the bottom of the sub rack and is used for forced air cooling and heat dissipation of the equipment. Its details are as follows:

Please refer to Section 2.3 for a detailed introduction.

When installing the ZXMP S360 equipment subrack into the ZXMP S360 equipment cabinet, a maximum of one subrack can be placed in the 2000mm and 2200mm cabinets, and one or two subracks can be configured for the 2600mm cabinet according to actual needs.

2.2 Backboard MB

The MB board of the ZXMP S360 device is fixed in the sub rack and serves as a carrier for connecting various individual boards, as well as the interface for connecting the ZXMP S360 device with external signals.

The backplane is divided into two parts, the upper part is the interface area, which gathers the non business interfaces of the devices to the outside world, and the lower part connects each single board through sockets. On the backplane, there are distributed Telecom buses, overhead buses, clock buses, board bit lines, etc., which connect various single boards, devices, and external signals through the interfaces and sockets of the backplane.

2.3 Fan plug-in box

The fan plug-in box of ZXMP S360 device is located at the bottom of the sub rack. The fan plug-in box is equipped with three DC fans to provide forced air cooling and heat dissipation for the device. The fan power is provided by the -48V DC power supply of the power alarm unit. A switch is installed on the fan plug-in box panel to control the start and stop of the fan. The fan alarm is indicated by sound and light through the power alarm unit. To meet electromagnetic compatibility requirements, the fan plug-in box structure adopts a fully sealed form, and honeycomb shielding ventilation boards are installed at the inlet and outlet.

3.1.1NCP board function and principle

Guiding program application and database

ECC interface S interface

Real time clock board reset

Board in place detection Qx/Q3/F interface

The network element processing function and ECC protocol processing function of the NCP board are completed in one CPU.

The Qx interface is the communication interface between NCP and SMCC;

The Q3 interface is the communication interface between NCP and TMN, both of which are implemented using Ethernet interfaces based on TCP/IP protocol; The F interface is the communication interface between the portable computer and the NCP board, using asynchronous serial communication mode interface (RS-232).

2. The S interface is the interface between the MCU of each individual board and the NCP board, using HDLC-BUS connection

Method. Monitor the working status of each board in the device through the S interface NCP board, issue commands to each board, and also report the operation information of each board to the network management.

3. The ECC interface is the interface between the optical board and the NCP board, using HDLC-BUS connection method for processing

ECC information of the optical panel.

4. Real time clock is used to determine the accurate time when events and alarms occur and disappear while monitoring network elements.

There is a rechargeable backup battery on the NCP board to ensure accurate timing after the device is powered off. Under normal circumstances, the real-time clock is powered by the power supply and the battery is charged. After the system loses power, the clock circuit is powered by the backup battery.

5. Board in place detection is responsible for detecting the in place status of individual boards and external alarm events, such as fire alarms, temperature, and wind

Fan, etc.

Single board reset can perform hard reset on each single board of the device.