IDM MSAP-CP Multi-Service Access Platform

The IDM MSAP-CP 6U card-based all-optical Ethernet switch is a managed optical Ethernet access switch developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. As a professional media converter manufacturer and SDH equipment manufacturer, Raytrans adopts a 19-inch 6U chassis structure and a card-based design into which Fast Ethernet/gigabit optical switching boards can be inserted, for optical Ethernet access and aggregation in electric power private networks, rail transit communications, and unattended field sites. The access fiber medium of the IDM MSAP-CP can be single-mode or multimode fiber, and the optical modules are in SFP form; in addition to switching, authentication, and packet filtering, the device also provides an optical layer protection mechanism and multicast functions, and supports network remote management and local management, making it convenient to monitor port operating status and configure the switch. The device can be widely used in government private network optical fiber communication solutions and can coordinate networking with the products of industrial Ethernet switch manufacturers, and it is often presented as core aggregation equipment in a media converter product showcase.

Key Specifications at a Glance: 6U chassis · 10 GE optical ports · optical layer protection · dual management · Fast Ethernet board 8 FE + 2 GE · single-mode/multimode SFP

Figure 1: Front View of the IDM MSAP-CP 19-inch 6U Chassis and Card Slots for Fast Ethernet/Gigabit Optical Switching Boards

What Is an All-Optical Ethernet Switch? The IDM MSAP-CP Carries Optical Switching Boards in One 6U Chassis

An all-optical Ethernet switch is an Ethernet access switch whose access-side and uplink-side ports are all optical fiber ports and whose transmission medium is optical fiber, with service packets switched, authenticated, and filtered inside the device without relying on copper cable transmission. As a professional media converter manufacturer, Raytrans has turned this switching capability into a card-based form factor: the 19-inch 6U chassis of the IDM MSAP-CP provides multiple card slots for inserting Fast Ethernet or gigabit optical switching boards according to the site service scale, with both the devices on the user side and the uplink-side link connected through optical ports. The engineering significance of the card-based structure lies in configuration on demand — when an access point is expanded or bandwidth is upgraded, it is enough to add or replace optical switching boards while the chassis, backplane, and power supply continue in use. For integrators that need a media converter product showcase, this card-based form factor also makes it convenient to present port configurations and expansion paths visually.

The match between fiber medium and optical module is determined by the on-site optical cable: single-mode fiber suits links with a longer distance between sites, while multimode fiber suits connections inside an equipment room or over short distances; both media are connected through SFP optical modules, so a change of type requires only replacing the optical module rather than the whole board. The IDM MSAP-CP supports two maintenance paths, network remote management and local management: the central equipment room can view port operating status remotely, and on site the switch parameters can also be set through local login. As an experienced SDH equipment manufacturer and industrial Ethernet switch manufacturer, Raytrans adopts the same maintenance architecture in government private network optical fiber communication solutions.

How to Choose Between Fast Ethernet and Gigabit Optical Switching Boards?

The difference between the Fast Ethernet and gigabit optical switching boards lies in the number of optical ports and the per-port rate, and board selection is based on the port list of the site. The Fast Ethernet optical switching board provides 8 FE optical ports and 2 GE optical ports and suits access points where edge Fast Ethernet devices are concentrated: the 8 FE optical ports are used to connect Fast Ethernet terminals or front-end devices, while the 2 GE optical ports are used for uplinks or inter-site interconnection. The gigabit optical switching board provides 10 GE optical ports and suits gigabit access and aggregation scenarios: uplinks from multiple devices in an equipment room, gigabit access for a video private network, or gigabit interconnection between sites can all be completed within a single board.

Board selection proceeds in the order of first counting the port types and then calculating the number of boards: where Fast Ethernet devices dominate at a site, the Fast Ethernet optical switching board is the main choice, while dense gigabit ports or a need for gigabit aggregation call for the gigabit optical switching board; one and the same 6U chassis can take a mixed insertion of the two board types grouped by site, so there is no need to configure two kinds of chassis for sites of different rates. The single-mode/multimode choice of the optical ports is independent of the board type — simply select the corresponding SFP optical module according to the existing optical cable type.

Core Functions: Switching, Optical Layer Protection, and Port-Level Access Control

The functions of the IDM MSAP-CP revolve around access security and link continuity, and the table below summarizes the capabilities of the device and what they do.

Key Specifications

The parameters in the table are taken from this product's technical documentation; for items not listed, such as power supply mode, overall power consumption, operating temperature, and optical port transmission distance, no information is yet recorded in the knowledge base, and for specific values the manufacturer's technical documentation and commercial confirmation shall prevail.

What Problems Does the 6U Card-Based All-Optical Ethernet Switch Solve in Private Networks?

Typical Application Scenarios

In private networks, the IDM MSAP-CP is usually deployed on the site side or the aggregation side, connecting downwards through optical ports to the terminals and front-end devices within the site and upwards through optical ports to the upper-level network; the card-based structure allows the same media converter device to match the port scale and rate requirements of different sites. The following three industry scenarios are the main uses of the 6U card-based all-optical Ethernet switch.

Figure 2: Access Networking Schematic of the IDM MSAP-CP All-Optical Ethernet Switch in Electric Power and Rail Transit Private Networks

Electric Power Private Networks: Ethernet Access Between Substations and Dispatch Centers

Electric power private networks are characterized by distributed sites and high requirements on link continuity, and a communication interruption may directly affect the delivery of dispatch commands and telecontrol data. On the substation side, the IDM MSAP-CP plays the access role: the 8 FE optical ports of the Fast Ethernet optical switching board connect terminal devices in the substation, and the 2 GE optical ports are used for the uplink; at the link level, the optical layer protection mechanism takes over, so that services can be switched over quickly when the active optical path fails. Access security is handled by port-to-MAC address binding, MAC address filtering, and port isolation, preventing terminals in the substation from connecting at will or accessing across ports. On the dispatch center side, network remote management provides a unified view of the port status of each site, reducing site-by-site inspection.

Rail Transit Communications: Optical Fiber Access and Aggregation for Sites Along the Line and Station Equipment Rooms

The station spacing along a rail transit line and the distribution of equipment rooms determine that access devices need to support Fast Ethernet access and gigabit aggregation at the same time. The 6U chassis of the IDM MSAP-CP allows boards to be inserted in groups by site: at small stations along the line, Fast Ethernet optical switching boards carry the access of front-end devices, while station equipment rooms use gigabit optical switching boards to complete access and aggregation on 10 GE optical ports; the access fiber is chosen as single-mode or multimode according to the on-site optical cable, and SFP optical modules are plugged directly into the board. When a section link interruption occurs, the optical layer protection mechanism switches over services, so that inter-station communication and monitoring data do not have to wait for manual intervention, and broadcast services are carried by the multicast function.

Unattended Field Sites: Remote Management Combined with Port Security Policies

The difficulty in operating and maintaining an unattended site is the high cost of reaching it, so the device must support remote configuration and status monitoring. The IDM MSAP-CP supports network remote management and local management: the central side remotely monitors port operating status and issues switch settings, and when attendance on site is necessary, maintenance can be performed through the local management port. On the access side, port-based network access control restricts terminal access, port bandwidth control and broadcast storm control suppress the impact of abnormal traffic on the link, and the head-of-line blocking prevention mechanism reduces packet loss caused by forwarding congestion, keeping the site available under conditions of sparse maintenance.

The parameters in the table are taken from this product's technical documentation; for items not listed, such as power supply mode, overall power consumption, operating temperature, and optical port transmission distance, no information is yet recorded in the knowledge base, and for specific values the manufacturer's technical documentation and commercial confirmation shall prevail.

What Problems Does the 6U Card-Based All-Optical Ethernet Switch Solve in Private Networks?

Typical Application Scenarios

In private networks, the IDM MSAP-CP is usually deployed on the site side or the aggregation side, connecting downwards through optical ports to the terminals and front-end devices within the site and upwards through optical ports to the upper-level network; the card-based structure allows the same media converter device to match the port scale and rate requirements of different sites. The following three industry scenarios are the main uses of the 6U card-based all-optical Ethernet switch.

Figure 2: Access Networking Schematic of the IDM MSAP-CP All-Optical Ethernet Switch in Electric Power and Rail Transit Private Networks

Electric Power Private Networks: Ethernet Access Between Substations and Dispatch Centers

Electric power private networks are characterized by distributed sites and high requirements on link continuity, and a communication interruption may directly affect the delivery of dispatch commands and telecontrol data. On the substation side, the IDM MSAP-CP plays the access role: the 8 FE optical ports of the Fast Ethernet optical switching board connect terminal devices in the substation, and the 2 GE optical ports are used for the uplink; at the link level, the optical layer protection mechanism takes over, so that services can be switched over quickly when the active optical path fails. Access security is handled by port-to-MAC address binding, MAC address filtering, and port isolation, preventing terminals in the substation from connecting at will or accessing across ports. On the dispatch center side, network remote management provides a unified view of the port status of each site, reducing site-by-site inspection.

Rail Transit Communications: Optical Fiber Access and Aggregation for Sites Along the Line and Station Equipment Rooms

The station spacing along a rail transit line and the distribution of equipment rooms determine that access devices need to support Fast Ethernet access and gigabit aggregation at the same time. The 6U chassis of the IDM MSAP-CP allows boards to be inserted in groups by site: at small stations along the line, Fast Ethernet optical switching boards carry the access of front-end devices, while station equipment rooms use gigabit optical switching boards to complete access and aggregation on 10 GE optical ports; the access fiber is chosen as single-mode or multimode according to the on-site optical cable, and SFP optical modules are plugged directly into the board. When a section link interruption occurs, the optical layer protection mechanism switches over services, so that inter-station communication and monitoring data do not have to wait for manual intervention, and broadcast services are carried by the multicast function.

Unattended Field Sites: Remote Management Combined with Port Security Policies

The difficulty in operating and maintaining an unattended site is the high cost of reaching it, so the device must support remote configuration and status monitoring. The IDM MSAP-CP supports network remote management and local management: the central side remotely monitors port operating status and issues switch settings, and when attendance on site is necessary, maintenance can be carried out through the local management port. On the access side, port-based network access control restricts terminal access, port bandwidth control and broadcast storm control suppress the impact of abnormal traffic on the link, and the head-of-line blocking prevention mechanism reduces packet loss caused by forwarding congestion, keeping the site available under conditions of sparse maintenance.