Technical Specifications
Order Information
- DGS-1250-52X 48 Ports 10/100/1000 Mbps + 4 Ports 10G SFP+ Smart Managed Switch
Hardware Version
General
Interfaces
- 48 x 10/100/1000BASE-T
- 4 x 10G SFP+ ports
Port Standards
- IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)
- IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)
- IEEE 802.3u 100BASE-FX 100 Mbps over fiber optic
- IEEE 802.3ab 1000BASE-T Gigabit Ethernet (twisted-pair copper)
- IEEE 802.3z 1000BASE-X 1 Gbps over fiber optic
- IEEE 802.3az Energy-Efficient Ethernet (EEE)
- IEEE 802.3x Flow Control
- IEEE 802.3ae 10 Gigabit Ethernet
- IEEE 802.3af/at
Network Cables
- UTP Cat. 5, Cat. 5e (100 m max.)
Duplex Mode
- Full/Half-duplex for 10/100 Mbps
- Full-duplex for 1000 Mbps
Media Interface Exchange
- Au
- to MDI/MDIX adjustment for all twisted-pair ports
Performance
Switching Capacity
Transmission Method
MAC Address Table
Static MAC Addresses
Maximum 64 Byte Packet Forwarding Rate
Packet Buffer Memory
CPU Memory
Flash Memory
PoE
PoE Standard
PoE Capable Ports
PoE Power Budget
LEDs
Power (per device)
Link/Active/Speed (per RJ-45 port)
Link/Active/Speed (per 10G SFP+ port)
Physical
Power Input
- 100 to 240 V AC 50/60 Hz internal universal power supply
Maximum Power Consumption
Standby Power Consumption
Acoustics
- Max: 50.7 dB(A)
- Max: 39.0 dB(A)
Heat Dissipation
- 173.91 BTU/hr (100 V)
- 174.592 BTU/hr (240 V)
MTBF
Operating Temperature
Storage Temperature
- -20 to 70°C (-4 to 158°C)
Operating Humidity
- 0% to 95% relative humidity
Storage Humidity
- 0% to 95% relative humidity
Dimensions (L x W x H)
- 440 x 210 x 44 mm (17.32 x 8.27 x 1.73 in)
Weight
Certifications
Safety
EMI
- CE Class A, VCCI Class A, FCC Class A, IC, BSMI
Software
L2 Features
- MAC Address Table
- 16K entries
- 32K entries (DGS-1250-52X/52XMP only)
- IGMP Snooping
- IGMP v1/v2/v3 Snooping
- Supports at least 64 static multicast addresses
- IGMP per VLAN
- Supports IGMP Snooping Querier
- Loopback Detection
- 802.3ad Link Aggregation:
- Supports maximum 8 groups per per device and 8 ports per group
- LLDP
- LLDP-MED
- Jumbo Frame
- Up to 12,000 bytes
- Spanning Tree Protocol
- 802.1D STP
- 802.1W RSTP
- 802.1s MSTP
- Flow Control
- 802.3x Flow Control
- HOL Blocking Prevention
- Port Mirroring
- One-to-One
- Many-to-One
- Supports Mirroring for Tx/Rx/Both
- Multicast Filtering
- Forwards all registered groups
- Filters all unregistered groups
- Configurable MDI/MDIX
- MLD snooping v1/v2 awareness (256 groups)
- PD-Alive
VLAN
- 802.1Q
- VLAN Group
- Max. 4094 static VLAN groups
- Configurable VID from 1 - 4094
- Asymmetric VLAN
- Auto Voice VLAN
- Max. 10 user-defined OUI
- Max. 8 default OUI
- Auto Surveillance VLAN
Quality of Service (QoS)
- 802.1p Quality of Service
- 8 queues per port
- Queue Handling
- Strict
- Weighted Round Robin (WRR)
- Bandwidth Control
- Port-based (ingress/egress, min granularity 10/100/1000 is 16 Kbps)
- QoS based on:
- 802.1p priority queues
- DSCP
- MAC address
- EtherType
- IP address
- Protocol type
- ToS
- IP preference
- IPv6 Traffic Class
- TCP/UDP port
L3 Features
- IP interface
- Supports 4 interfaces
- IPv6 Neighbor Discovery (ND)
- Static routing
- 124 IPv4 static route entries
- 50 IPv6 static route entries
Access Control List (ACL)
- Max. 50 access lists
- Max. 768 rules shared by IPv4, MAC, and IPv6
- Each rule can only be associated with a single port
- ACL based on
- MAC address
- 802.1p priority mask
- VID mask
- Source/destination MAC address mask
- EtherType mask
- IP address
- Source/destination IP address mask
- DSCP mask
- Protocol type mask
- TCP/UDP port number mask
- IPv6 address
- Source/destination IP address mask
- DSCP mask
- Protocol type mask
- TCP/UDP port number mask
- IPv6 traffic class mask
Security Features
- Broadcast/Multicast/Unicast Storm Control
- D-Link Safeguard Engine
- Traffic segmentation
- SSH v2
- TLS v.1.2
- DoS attack prevention
- 802.1X Port-based Access Control
- Port Security
- Supports up to 64 MAC addresses per port
- ARP Spoofing Prevention
- Max. 127 entries
- DHCP Server Screening
- IP-MAC-Port Binding (Smart Binding)
- ARP Inspection
- Max. 64 entries
- IPv4 Inspection
- Max. 127 entries
- IPv6 Inspection
- Max. 63 entries
- DHCP Snooping
- Max. 512 entries
AAA
- 802.1X Authentication
- Supports local/RADIUS database
- Supports port-based access control
- Supports host-based access control
- Supports EAP, OTP, TLS, TTLS, PEAP
- IPv6 RADIUS server
- Support MD5 authentication
- Max. 128 entries when using local database
OAM
- Cable diagnostics
- Factory reset
Management
- Web-based GUI
- D-Link Network Assistant
- Full CLI
- Telnet Server
- TFTP Client
- Configurable MDI/MDIX
- SNMP
- Supports v1/v2c/v3
- SNMP Trap
- Backup/upgrade firmware
- Smart Wizard
- Upload/download configuration file
- BootP/DHCP Client
- System Log
- Max. 500 log entries
- SNTP
- ICMP v6
- IPv4/v6 Dual Stack
- DHCP Auto Configuration
- Time setting
- SNTP
- RMONv1
- Trusted host
- Dual image
- Dual configuration
Green V3.0 Technology
Power Saving by:
- Link Status
- Time-based PoE: PoE ports can be turned on/off by port or system through schedule
System hibernation
Port shut off
Cable length detection
MIBs
- RFC1212 Concise MIB Definitions
- RFC1213 MIBII
- RFC1215 MIB Traps Convention
- RFC1493 Bridge MIB
- RFC1157, RFC2573, RFC2575, RFC2576 SNMP MIB
- RFC1442, RFC1901, RFC1902, RFC1903, RFC1904, RFC1905, RFC1906, RFC1907, RFC1908, RFC2578, RFC3418 SNMPv2 MIB
- RFC271, RFC1757, RFC2819 RMON MIB
- RFC2021 RMONv2 MIB
- RFC1398, RFC1643, RFC1650, RFC2358, RFC2665 Ether-like MIB
- RFC2674 802.1p MIB
- Interface Group MIB
- RFC2618 RADIUS Authentication Client MIB
- RFC4022 MIB for TCP
- RFC4113 MIB for UDP
- RFC2389 MIB for Diffserv.
- RFC2620 RADIUS Accounting Client MIB
- Private MIB
- PoE MIB
- DDP MIB
- LLDP-MED MIB
RFC Standards
- RFC791 IP
- RFC768 UDP
- RFC793 TCP
- RFC792 ICMPv4
- RFC2463, RFC4443 ICMPv6
- RFC826 ARP
- RFC1321, RFC2284, RFC2865, RFC2716, RFC3580 Extensible Authentication Protocol (EAP)
- RFC2573 SNMP Applications
- RFC2461, RFC4861 Neighbor Discovery for IPv6
- RFC2462, RFC4862 IPv6 Stateless Address Auto-configuration (SLAAC)
- RFC2464 IPv6 over Ethernet and definition
- RFC4291 IPv6 Addressing Architecture
- RFC2893, RFC4213 IPv4/IPv6 dual stack function