Beijing Raytrans Digital Technology Co., Ltd. SDH Integrated Unit Training Test

I. List all models of the SDH integrated units and the maximum number of service slots each can accommodate (excluding the 6UCP series, same below).

1. MSTP 155-16 (up to 3 service boards)
2. MSTP 155-24 (up to 3 service boards)
3. MSTP 155-63 (up to 3 service boards)
4. MSAP 155-24 (up to 3 service boards)
5. MUX30 (up to 3 service boards)
6. MUX90 (up to 9 service boards)
7. MUX170 (up to 17 service boards)
8. MUX300 (up to 14 service boards)
9. Field 155
10. Mining MSTP 155 integrated unit
11. Aggregation bridge
12. STM1-GE bridge
13. STM1 optical-electrical converter
14. 155M electrical-port SDH (MSTP 155-16E) (up to 3 service boards)
15. STM4-GE bridge
16. MINICP (up to 5 service boards)
17. MINICP 622 (up to 3 service boards)

17 models in total.

II. How many types of 1U MSTP main boards are there? What are their features? Which equipment are they used in respectively?

There are four types:

1. MSTP155-16 (general-purpose, used in MSTP155-16 and MUX30)
2. MSTP155-24 (general-purpose, used in MSTP155-24 and MSAP155-24)
3. MSTP155-63 (dedicated to MSTP155-24)
4. Mining MSTP155 integrated unit (dedicated to the mining MSTP155 integrated unit)

III. How many types of 3U-high service boards does the MSTP have? What are their functions?

1. 8FXO board (provides 8 telephone lines)
2. 10FXO board (provides 10 telephone lines)
3. 8FXS board (provides 8 telephone lines)
4. 10FXS board (provides 10 telephone lines)
5. 10MSO board (accommodates telephone cards and magneto modules)
6. V.24 board (provides 8 channels of RS232/422/485)
7. 4EM board (provides 4 channels of 2/4-wire EM)
8. 8ETH-USER board (provides 8 channels of Ethernet)
9. PDH board (provides one set of PDH optical interfaces and two Ethernet channels)
10. Video board (provides one channel of bidirectional video)
11. USER board (provides four universal slots for various 64K service cards)
12. MUSER board (accommodates various 4-channel service cards)
13. 8E1 board (provides 8 channels of E1)
14. MVOICE-8 (five-in-one multifunctional) board (software-configurable among 5 service functions)
15. V.35 board (provides 1 channel of V.35 service)
16. WG300 board (provides telephone switching management functions)

16 types in total.

IV. What are the functions of FXO and FXS interfaces? List their functions in detail.

The FXO card is the telephone card on the switching end.

The FXS card is the telephone card on the subscriber end.

Functions: off-hook, ringing, polarity reversal, dialing mode, caller ID.

V. An organization has 3 external plant areas, each 3KM apart. Points A, B, and C require 30, 60, and 100 telephone lines respectively. The main office building needs to connect to the external carrier's telephone network, with 30 lines able to make external calls simultaneously. All wireless intercoms across the organization must also be connected to the monitoring center. Draw a system application diagram using VISIO, and provide a brief description, equipment list, and quotation. Each equipment room has only fiber optic cable, ~220V power, and the plant telephone distribution frame.

1. Solution Requirements

An organization has 3 external plant areas, each 3KM apart. Points A, B, and C require 30, 60, and 100 telephone lines respectively. The main office building needs to connect to the external carrier's telephone network, with 30 lines able to make external calls simultaneously.

2. Solution Design

This solution uses the following topology design:

Topology Diagram

In this solution, the central office and each remote node are connected as follows:

1. The IDM MSAP-G3CP aggregation optical-electrical integrated transmission equipment is used for service aggregation at the central office. The central office equipment provides 3 STM-1 optical interfaces connecting to the 3 plant areas, and 30 analog trunk interfaces connecting to the carrier's program-controlled switching system;

2. The IDM MUX30, IDM MUX90, and IDM MUX170 are used respectively to provide 30, 60, and 100 telephone lines at the plant areas;

2.1.1 Required Network Elements

The network elements required for this topology are as follows:

u 1 unit of IDM MSAP-G3CP at the central office;

u 1 unit each of IDM MUX30, IDM MUX90, and IDM MUX170 at the 3 remote nodes, 3 units in total;

u SDH network management software server and corresponding server at the management control center equipment room;

u 1 network management terminal;

2.1.2 Interworking Description

The interworking design for this topology is as follows:

1. Interconnection with PSTN: The central office connects to the program-controlled switch via the analog trunk interface (FXO) of the IDM MSAP-G3CP, thereby accessing the public switched telephone network (PSTN).

3. Configuration List

VI. There are 60 base stations with spare E1 channels. Base station monitoring is required: access control, floor water immersion, temperature and other sensors support RS485 channels, plus one camera. At the central end, the E1 channels from each site are aggregated to the STM-1 interface. Which of our company's equipment can be used to access the remote RS485 and video?

1. Solution Requirements

There are 60 base stations with spare E1 channels. Base station monitoring is required: access control, floor water immersion, temperature and other sensors support RS485 channels, plus 1 camera. At the central end, the E1 channels from each site are aggregated to the STM-1 interface. Which of our company's equipment can be used to access the remote RS485 and video?

2. Solution Design

This solution uses the following topology design:

Topology Diagram

In this solution, the central office and each remote node are connected as follows:

3. The IDM MSAP-G3CP aggregation optical-electrical integrated transmission equipment is used for service aggregation at the central office. The central office equipment provides 60 E1 interfaces connecting to the 60 base stations, 60 RS485 interfaces, and 1 GE aggregation port. The 1 GE port is used to aggregate remote network camera data to the DVR;

4. The IDM MINI8 is used at each remote node to provide 1 channel of RS485 and 1 channel of network video access;

2.1.1 Required Network Elements

The network elements required for this topology are as follows:

u 1 unit of IDM MSAP-G3CP at the central office;

u 1 unit of IDM MINI8 at each of the 60 remote nodes, 60 units in total;

u SDH network management software server and corresponding server at the management control center equipment room;

u 1 network management terminal;

3. Configuration List