Description
Core Product Summary
The Moxa EDS-508A-MM-SC is a Layer 2 managed industrial Ethernet switch designed to connect copper Ethernet devices and multimode fiber network links. Part of the EDS-508A Series, it provides six 10/100BaseT(X) RJ45 ports and two 100BaseFX multimode fiber ports with SC connectors. This configuration supports industrial network layouts that require both copper device connections and fiber-optic connectivity.
The switch supports redundant 12/24/48 VDC power inputs, with an operating voltage range of 9.6 to 60 VDC. Its management and network features include VLAN tagging, spanning-tree protocols, port trunking with LACP, and Moxa Turbo Ring redundancy functions. Two digital inputs and two relay alarm outputs provide additional interfaces for monitoring and alarm integration. DIN-rail mounting supports installation in industrial control cabinets.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Moxa |
| Model | EDS-508A-MM-SC |
| Product type | Layer 2 managed industrial Ethernet switch |
| Product series | EDS-508A Series |
| 10/100BaseT(X) ports | 6 × RJ45 |
| Fiber Ethernet ports | 2 × 100BaseFX multimode |
| Fiber connectors | SC |
| Copper Ethernet features | Auto-negotiation, full/half duplex, Auto MDI/MDI-X |
| Switching standards | IEEE 802.3, IEEE 802.3u |
| Network management standards | IEEE 802.1Q VLAN, IEEE 802.1D STP, IEEE 802.1w RSTP, IEEE 802.1s MSTP, IEEE 802.1p CoS |
| Authentication | IEEE 802.1X |
| Power input | 12/24/48 VDC nominal, redundant dual inputs |
| Operating voltage | 9.6–60 VDC |
| Input current | 0.30 A at 24 VDC |
| Alarm outputs | 2 relay outputs, 1 A at 24 VDC |
| Digital inputs | 2 |
| Console interface | RS-232 via 8-pin RJ45 |
| Housing | Metal |
| Ingress protection | IP30 |
| Operating temperature | −10 to 60°C |
| Storage temperature | −40 to 85°C |
| Relative humidity | 5–95%, non-condensing |
| Dimensions (H × W × D) | 80.2 × 135 × 105 mm |
| Weight | 1,040 g |
| Mounting | DIN rail; wall mounting with optional kit |
Engineering Selection Highlights
- Six copper Ethernet ports: Supports connections for Ethernet-enabled controllers, industrial computers, and other network devices using 10/100BaseT(X).
- Two multimode SC fiber ports: Provides fiber connectivity for network segments using compatible 100BaseFX multimode fiber and SC-terminated connections.
- Managed Layer 2 functionality: VLAN, spanning-tree, and LACP capabilities support network segmentation, loop management, and link aggregation where configured and supported by the network design.
- Redundant DC power inputs: Allows connection to two DC power sources; the installation should follow the manufacturer’s wiring and power requirements.
- Network redundancy features: Turbo Ring-related configuration options support industrial network redundancy arrangements when implemented according to the applicable topology and configuration requirements.
- Alarm and monitoring interfaces: Two digital inputs and two relay outputs can be incorporated into suitable monitoring and alarm circuits.
- Industrial cabinet installation: DIN-rail mounting, an IP30 enclosure, and a −10 to 60°C operating range define relevant mechanical and environmental selection conditions.
EDS-508A-MM-SC
EDS-508A-MM-SC
EDS-508A-MM-SC
Applications & System Role
The Moxa EDS-508A-MM-SC functions as a managed Ethernet aggregation and connectivity device within an industrial communications network. It connects copper-based Ethernet endpoints and provides two fiber-optic interfaces for links to compatible network equipment.
Its six copper ports can serve local Ethernet devices, while the multimode fiber ports can connect to fiber-based segments where the optical interface and link budget are suitable. This mixed-interface arrangement is relevant when a cabinet or machine network needs both conventional twisted-pair Ethernet and fiber connectivity.
At the network-management level, VLAN tagging can separate logical traffic groups, while spanning-tree protocols help manage redundant Layer 2 paths. LACP provides link aggregation functionality when the connected equipment and network configuration support it. Turbo Ring configuration options provide another mechanism for implementing supported industrial network redundancy topologies.
The switch also provides two digital inputs and two relay alarm outputs. These interfaces can support appropriate external monitoring arrangements, subject to the electrical requirements of the connected circuits. The RS-232 console interface provides a local management connection.
Selection should focus on the required port count, multimode fiber type, SC connector format, DC supply arrangement, and operating temperature. The specified operating range is −10 to 60°C, so installations outside that range require a different assessment of equipment suitability. Fiber compatibility should be checked at both ends of each link rather than determined by connector shape alone.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Copper Ethernet | 10/100BaseT(X), RJ45 | Confirm the connected device supports the required Ethernet speed and cabling arrangement. |
| Fiber Ethernet | 100BaseFX multimode, SC | Match the fiber type, connector, and optical link characteristics at both ends. |
| DC power | 12/24/48 VDC nominal; 9.6–60 VDC operating range | Confirm supply voltage, current capacity, polarity, and redundant-input wiring. |
| Network management | IEEE 802.1Q, 802.1D, 802.1w, 802.1s, 802.1p, and 802.1X | Configure network features according to the requirements of the connected infrastructure. |
| Network redundancy | Turbo Ring configuration options | Confirm topology and configuration requirements before deployment. |
| Serial console | RS-232, 8-pin RJ45; 115200 baud, no parity, 8 data bits, 1 stop bit | Use the appropriate console cable and terminal settings. |
| Cabinet installation | DIN rail; optional wall-mounting kit | Allow sufficient space for cabling, ventilation, and service access. |
Dimensions, Mounting & Connection Notes
- Dimensions: 80.2 × 135 × 105 mm (H × W × D).
- Weight: 1,040 g.
- Mounting: DIN rail or wall mounting with the optional mounting kit.
- Power connection: Two removable six-contact terminal blocks.
- Power arrangement: Redundant DC inputs.
- Ethernet connections: Six RJ45 copper ports and two SC multimode fiber ports.
- Console connection: RS-232 via an 8-pin RJ45 interface.
- Environmental conditions: Operating temperature −10 to 60°C; relative humidity 5–95%, non-condensing.
- Enclosure rating: IP30.
For cabinet design, account for the physical dimensions and the space needed to route copper cables, fiber patch cords, power wiring, and console connections.
FAQ
What is the Moxa EDS-508A-MM-SC?
The Moxa EDS-508A-MM-SC is a managed Layer 2 industrial Ethernet switch with six 10/100BaseT(X) RJ45 ports and two 100BaseFX multimode fiber ports using SC connectors.
How many Ethernet ports does the EDS-508A-MM-SC have?
It has eight Ethernet ports in total: six copper RJ45 ports and two multimode fiber ports.
What type of fiber does this switch support?
It uses 100BaseFX multimode fiber interfaces with SC connectors. The fiber type and optical characteristics must match the connected equipment and link requirements.
What power supply does the EDS-508A-MM-SC require?
The switch accepts nominal 12, 24, or 48 VDC inputs, with an operating voltage range of 9.6–60 VDC. It has redundant dual power inputs.
Does the EDS-508A-MM-SC support network redundancy?
Yes. The switch provides Turbo Ring-related configuration options and supports spanning-tree protocols, including STP, RSTP, and MSTP. The applicable topology and configuration must be selected for the intended network.
What are the installation dimensions and temperature range?
The dimensions are 80.2 × 135 × 105 mm (H × W × D), and the weight is 1,040 g. The operating temperature range is −10 to 60°C.
Does the switch provide alarm interfaces?
Yes. It has two relay alarm outputs rated at 1 A at 24 VDC and two digital inputs. External circuit design must comply with the relevant electrical ratings.
Start Chat
