D-Link DMS-1250-10SP

L2 Smart Managed Switch

8 10/100/1000/2.5GBase-T PoE Ports + 2 10GBase-X SFP+ Ports L2 Smart Managed Switch.

Package Contents

Open the shipping carton of the Switch and carefully unpack its contents. If any item is missing or damaged, please contact your local D-Link reseller for replacement. The carton should contain the following items:

One DMS-1250-10SP switch
One AC power cord
One rack mounting kit (two brackets and screws)
Four rubber feet with adhesive backing
Operational documentation

Device Interfaces

Port	Description
10/100/1000/2.5GBase-T PoE ports	8 10/100/1000/2.5GBase-T PoE ports (10/100/1000/2500 Mbps connection speed).
10GBase-X SFP+ ports	2 10GBase-X SFP+ ports (1000/10000 Mbps connection speed).
RJ-45 console port	RJ-45 console port for connecting a remote system for monitoring and configuring the switch.

LEDs

LED	Status	Description
Power	Solid green	The switch is powered on.
	Light off	The switch is powered off.
Console	Solid green	RJ-45 console port is active.
	Light off	Console is off.
Fan Error	Solid red	Fan fail.
	Light off	Operating normally.
PoE Max	Solid amber	Total power output exceeds Guard Band threshold. The PD will be denied based on port priority or other PoE rules.
	Blinking amber	When the total power output becomes sufficient and allows to connect more PDs (more than 7 Watts), PoE MAX LED will blink 5 seconds.
LED Mode: Link	Light off	The PoE power is sufficient and below the guard band threshold.
LED Mode: PoE	Solid green	LEDs for ports 1-8 are in Link Mode (Link/Activity/Speed).
Link/Activity/Speed (per port 1-8)	Solid green	LEDs for ports 1-8 are in PoE Mode (PoE OK/PoE Fail).
	Solid blue	There is a secure 2500 Mbps connection at the port.
	Blinking blue	There is reception or transmission occuring at the port.
	Solid green	There is a secure 1000 Mbps connection at the port.
	Blinking green	There is reception or transmission occuring at the port.
	Solid amber	There is a secure 10/100 Mbps connection at the port.
	Blinking amber	There is reception or transmission occuring at the port.
Link/Activity/Speed (per port 9-10)	Light off	Link down or no link.
	Solid green	There is a secure 10 Gbps connection at the port.
	Blinking green	There is reception or transmission occuring at the port.
	Solid amber	There is a secure 1000 Mbps connection at the port.
	Blinking amber	There is reception or transmission occuring at the port.
PoE OK/PoE Fail (per PoE port)	Light off	Link down or no link.
	Solid green	Power feeding.
	Solid amber	Error condition.
	Light off	No power feeding.

Installation Guidelines

This section will discuss the hardware installation guidelines that the user must follow in order to properly and safely install this Switch into the appropriate environment.

Visually inspect the power cord and see that it is fully secured to both the power connector, on the Switch, and the electrical outlet that supplies power.
Install the Switch in a fairly cool and dry place within the acceptable operating temperature and humidity ranges.
Install the Switch in a site free from strong electromagnetic field generators such as motors, vibration, dust, and direct exposure to sunlight.

Installing the Switch without a Rack

This section is used to guide the user through installing the Switch in an area other than a switch rack. Attach the included rubber feet to the bottom of the Switch. Take note that there should be marked blocks on the bottom of the Switch to indicate where to attach the rubber feet. These markings are usually found in each corner on the bottom of the device. The rubber feet cushion the Switch, protecting the casing from scratches and preventing it from scratching other surfaces.

Diagram showing rubber feet being attached to the underside of the D-Link DMS-1250-10SP switch. Arrows indicate placement on marked areas at the corners.

Install the Switch on a sturdy, level surface that can support the weight of the Switch. Do not place any heavy objects on the Switch. Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Leave at least 10 cm (4 inches) of space at the front, sides, and rear of the Switch for ventilation.

Installing the Switch in a Standard 19" Rack

This section is used to guide the user through installing the Switch into a switch rack. The Switch can be mounted in a standard 19"(1U) rack using the provided mounting brackets. Fasten the mounting brackets to the sides of the Switch using the screws provided.

Diagram illustrating the attachment of rack-mount brackets to the sides of the D-Link DMS-1250-10SP switch using screws.

Fasten the mounting brackets in any available open space in the rack using the screws provided with the rack.

Diagram showing the D-Link DMS-1250-10SP switch mounted in a standard 19-inch rack using the attached brackets and rack screws.

Installing Transceivers into the Transceiver Ports

The Switch is equipped with Enhanced Small Form-factor Pluggable (SFP+) ports that can be used to connect various other networking devices to this Switch that do not support the standard RJ-45 wiring connection. These ports are generally used to connect this Switch to optical fiber connections and can be used to connect devices to the Switch over great distances. The maximum distance that the RJ-45 wiring connection can reach is 100 meters. Fiber optic connections can span several kilometers.

Diagram showing SFP+ transceivers being inserted into the SFP+ ports located on the rear or side panel of the D-Link DMS-1250-10SP switch.

Power On (AC Power)

Plug one end of the AC power cord into the power socket of the Switch and the other end into the local power source outlet.

Power Failure (AC Power)

In the event of a power failure, just as a precaution, unplug the power cord from the Switch. After the power returns, plug the power cord back into the power socket of the Switch.

Management Options

This Switch provides multiple access platforms that can be used to configure, manage, and monitor networking features available on this Switch. Currently there are three management platforms available which are described below.

Command Line Interface (CLI)

This Switch can be managed, out-of-band, by using the console port on the front panel of the Switch. Alternatively, the Switch can also be managed, in-band, by using a Telnet connection to any of the LAN ports on the Switch. The command line interface provides complete access to all switch management features.

SNMP-based Management

The Switch can be managed with an SNMP-compatible console program. The Switch supports SNMP v1, SNMPv2c and SNMPv3.

Web User Interface (Web UI)

The Web UI can be accessed from any computer running web browsing software. This management interface is a more graphical representation of the features that can be viewed and configured on this Switch.

Connecting to the Console Port

The front panel of the Switch provides an RJ-45 console port to connect a remote system for monitoring and configuring the Switch.

To use the RJ-45 console port, the following equipment is needed:

A terminal or a computer with RJ-45 ethernet port and terminal emulation software
A RJ-45 Ethernet cable

To connect the RJ-45 console port on the Switch to the computer:

Connect the Ethernet cable to the RJ-45 port on the computer running terminal emulation software then connect the cable to the RJ-45 console port on the front of the Switch.

To configure the terminal emulation software as follows:

Select the appropriate serial port (COM1 or COM2).
Set the data rate to 115200 baud.
Set the data format to 8 data bits, 1 stop bit, and no parity.
Set flow control to none.

Diagram of a COM port configuration window, displaying settings such as Bits per second (115200), Data bits (8), Parity (None), Stop bits (1), and Flow control (None).

Connecting to the Switch for the First Time

After successfully connecting to the Switch's console port and the Switch was turned on, the boot-up procedure will be displayed. After the Switch was successfully booted up, the username and password prompt will appear. Both the default Username and Password is admin. Enter the username and password and press ENTER after each entry.

NOTE: For security reasons, it is highly recommended to configure a personal username and password for this Switch.

Logging into the Web UI

Supported Web browsers:

Microsoft Internet Explorer 8 or above
Firefox
Google Chrome
Safari
Microsoft Edge

To access the Web UI, open a standard web browser, enter the Switch's IP address into the address bar of the browser, and press the ENTER key. To access the Web UI from normal LAN ports, the default IP address is 10.90.90.90, with a subnet mask of 255.0.0.0. When connecting to the Web UI of the Switch for the first time, enter User Name and Password (both admin) in the corresponding fields and click Login.

Screenshot of the D-Link DMS-1250-10SP Web UI login page, featuring fields for User Name, Password, and Language selection, with Login and Reset buttons.

Technical Specifications

Hardware


Operating Memory	512 MB
Flash Memory	32 MB
Interfaces	8 ports 10/100/1000/2.5GBase-T with PoE 2 ports 10GBase-X SFP+ RJ-45 console port
Indicators	Power Link/Activity/Speed (per port) PoE OK/PoE Fail (per PoE port) Console Fan Error PoE Max LED Mode (Link/PoE)
Buttons	Reset Button Mode Button
Power Connector	AC power connector

Functionality


Standards and Functions	IEEE 802.3 10Base-T IEEE 802.3u 100Base-TX IEEE 802.3ab 1000Base-T IEEE 802.3bz 2.5GBase-T IEEE 802.3z 1000Base-X IEEE 802.3ae 10GBase-X IEEE 802.3az Energy-Efficient Ethernet Flow control IEEE 802.3x Automatic MDI/MDIX detection on all copper ports

Performance


Switching Fabric	80 Gbps
Switching Method	Store-and-forward
MAC Address Table Size	16K entries
Max. Forwarding Rate (64-byte packets)	59.53 Mpps
Static MAC Addresses	256 entries
Packet Buffer	1.5 MB
Jumbo Frame	12,288 bytes

PoE


PoE Standards	IEEE 802.3af IEEE 802.3at Perpetual PoE Fast PoE
PoE Ports	Ports 1-8
PoE Power Budget	240 W (max. 30 W per PoE port)

Physical Parameters


Dimensions (L x W x H)	330 x 200 x 44 mm
Weight	2.377 kg

Operating Conditions


Power	100-240 VAC, 50/60 Hz
Max. Power Consumption	287.58 W (PoE enabled) 21.221 W (PoE disabled)
Power Consumption in Standby	10.936 W
Heat Dissipation	287.4 W (981.223 BTU/hr)
MTBF (hours)	645,155.67
Noise Level	At high fan speed: 47.1 dB At low fan speed: 43 dB
Electrostatic Discharge Protection	Supports protection up to 6 kV on all copper ports (IEC61000-4-5 standard)
Ventilation System	2 fans
Temperature	Operating: -5 to 50 °C Storage: -20 to 70 °C
Humidity	During operation: 0% to 95% non-condensing During storage: 0% to 95% non-condensing

Other


EMI	CE Class A, VCCI Class A, FCC Class A, IC, BSMI
Safety	CB, UL, BSMI

Technical Support

Software updates and documentation are available on the D-Link website. D-Link provides free support for customers during the warranty period. Customers can contact the D-Link technical support group by phone or via the Internet. D-Link technical support operates 24/7, every day, except for official holidays. Calls are free within Russia.

D-Link Technical Support: 8-800-700-5465

Technical Support via Internet: http://www.dlink.ru, e-mail: support@dlink.ru

Manufacturer: D-Link Corporation, 11494, Taiwan, Taipei, Neihu District, Sint Hu 3rd Road, No. 289

Authorized Representative, Importer: LLC "D-Link Trade", 390010, Ryazan, pr. Shabulina, bld. 16, Tel.: +7 (4912) 575-305

Office Addresses:

Russia: Moscow, Grafsky Lane, 14, Tel.: +7 (495) 744-00-99, e-mail: mail@dlink.ru
Belarus: Minsk, Nezavisimosti Ave., 169, Tel.: +375 (17) 218-13-65, e-mail: support@dlink.by
Kazakhstan: Almaty, Kurmangazy St., 143 bld., Tel.: +7 (727) 378-55-90, e-mail: almaty@dlink.ru

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