Allied Telesis AT-FS238 User Manual

Datasheet | Switches

AT-FS238

2 Port Fast Ethernet Single Strand Speed/Media Converting Switch

AT-FS238

2 port single strand fiber media converter,10/100TX (RJ-45) to 100FX (SC), (1310nm TX/1550nm RX) or (1550nm TX/1310nm RX) with distances up to 40km

Overview

The AT-FS238 media converter is a 10/100Mbps copper to single-mode fiber media converter which can send and receive on single strand fiber (1310nm TX/1550nm RX) or (1550nm TX/1310nm RX).These units are designed to be used in pairs in a network topology to provide point-to-point access.The AT-FS238 converts 10/100TX (RJ-45) to 100FX (SC) and will transmit up to 40km on high quality fiber optic cable. Both ports feature full and half-duplex operation.The AT-FS238 is easy to install and does not require software configuration or management. Additionally, it can be used almost anywhere due to its small physical size, choice of

wer supplies and options to be rack-

nal po

exter mounted.

Auto MDI/MDI-X

ter features

-FS238 media con

The automatic MDI/MDI-X.The 10/100TX (RJ-45) port automatically determines the configuration of the por connected and then configures itself appropr either crossover cables or straight-through cable when connecting a device to the copper port.

t on the device to which it is

.This feature allows you to use

iatel

Smart MissingLinkTM(SML)

The MissingLinkTMfeature allows the ports on the media converter to pass the ‘Link’ status of their connections to each other. When the media converter detects a problem with one of the ports, such as the loss of connection to a node, it shuts down the connection to the other

thus notifying the node that the

por connection has been lost.The AT-FS238 also features Smart MissingLink (SML). This feature monitors network connections and provides notification if a network segment fails. This allows network managers to quickly identify the source and location of a failed segment and minimize downtime.

Key Features

LEDs for unit and port status

•

• Auto MDI/MDI-X

• Mode selection button that toggles between

Link Test, MissingLink, and Smart MissingLink

• DIP switches for port configuration

• Supports half and full-duplex operation

• Data packet forwarding and filtering at full

wirespeed (10Mbps to 100Mbps, 100Mbps to 100Mbps, and 10Mbps to 10Mbps)

• Store and forward switching mode

• Automatic address learning and aging

• IEEE 802.3u compliant auto-negotiation

• External AC/DC power adapter (North

America, Continental Europe or United Kingdom)

• Rack-mountable using optional AT-MCR12,

T-TRAY4 or AT-TRAY1 chassis

elesis www.alliedtelesis.com

Allied

AT-FS238 | 2 Port Fast Ethernet Single Strand Speed/Media Converting Switch

Status Indicators

System LEDs

Power Indicates power is applied to the

converter

Per fiber port:

Link Indicates a valid receive link exists Duplex Indicates full or half-duplex operation Collision Indicates collision during packet

Per copper port:

Link Indicates a valid receive link exists Speed Indicates either 10Mbps or 100Mbps

operation

Auto Indicates port is set for auto-

negotiation

FD/Collision Indicates collision during packet

transmission on the port Indicates full or half-duplex operation

Operational Characterisitcs

Per fiber port:

Duplex Selects either full or half-duplex

operation

Per copper port:

Auto Selects auto-negotiation mode or

manual setting

Duplex Forces port to full or half-duplex

operation (Auto-setting = manual only)

Speed Forces port to 10Mbps or 100Mbps

operation (Auto-setting = manual only)

Operational Mode

MissingLink (ML) Smart MissingLink (SML) Link Test

Packet buffer 28k per port MAC address table

orwarding/filtering rate

8k addresses 148,880pps for 100Mbps 14,880pps for 10Mbps

Latency 14.3µsec

(64 byte packet, 100Mbps full-duplex)

Power Characteristics

Input supply voltage 12vDC or 12-50vDC Rated currents

er consumption 24W max.

.5A max.

Physical Characteristics

Dimensions 10.5cm x 9.5cm x 2.5cm

(4.12" x 3.75" x 1")

Weight 294g (10.4 oz)

Fiber Optic Port Specifications

Fiber Optic Transmitter

Model Fiber Type

Fiber Optic

Diameter (Microns)

Optical Wavelength

Launch Power (dBm)

Min.

Avg.

Max.

AT-FS238a/1 SMF (SC) 9/125 1310nm -15.0 -11.0 -8.0 AT-FS238a/2 SMF (SC) 9/125 1310nm -8.0 -5.0 -2.0 AT-FS238b/1 SMF (SC) 9/125 1550nm -15.0 -11.0 -8.0 AT-FS238b/2 SMF (SC) 9/125 1550nm -8.0 -5.0 -2.0

Fiber Optic Receiver

Model Fiber Type

Fiber Optic

Diameter (Microns)

Optical Wavelength

Receiver Sensitivity (dBm)

Max. Avg. Saturation

AT-FS238a/1 SMF (SC) 9/125 1550nm -30.0 n/a -7.5

T-FS238a/2

SMF (SC) 9/125 1550nm -33.0 n/a -2.0 AT-FS238b/1 SMF (SC) 9/125 1310nm -30.0 n/a -7.5 AT-FS238b/2 SMF (SC) 9/125 1310nm -33.0 n/a -2.0

Fiber Optic Datalink

1 SMF = Single-mode fiber 2 The recommended mimimum range is

stated in all cases where the maximum transmitter output power exceeds the receiver’s saturation level. This is to prevent blinding or burning out of the optical receiver on the far-end mode.

3. Distance is calculated based on ideal

Model Fiber Type

Minimum

Power/Link Budget

Minimum Operating Distance

Minimum Operating

Distance

AT-FS238a/1 9/125 SMF 6.0dB 0 15km (9.4mi) AT-FS238a/2 9/125 SMF 16.0dB 0 40km (9.4mi) AT-FS238b/1 9/125 SMF 6.0dB 0 15km (9.4mi) AT-FS238b/2 9/125 SMF 16.0dB 0 40km (9.4mi)

situations without any other loss factor

Fiber Optic Loss Specification (Benchmark)

Fiber Type

Fiber Optic

Diameter (Microns)

Optical Wavelength

SMF (SC) 9/125 1310nm 0.4dBm n/a

Typical Loss Factor

Bandwidth

Ordering Information

AT-FS238A/1-10

2 port single strand fiber media converter, 10/100TX (RJ-45) to 100FX (SC) (1310nm TX/1550nm RX) with 12vDC power supply and distances up to 15km

Environmental Specifications

Operating temp. 0°C to 40°C (32°F to 104°F)

C to 70°C (-13°F to 158°F)

Storage temp.

-20

Relative humidity 5% to 90% non-condensing

(operating)

Relative humidity 5% to 95% non-condensing

(storage)

Operating and Up to 3,048m (10,000 feet)

storage altitude

Electrical/Mechanical Approvals

CE IEEE 802.3, IEEE 802.3u Safety

UL60950 (cULus),

EN60950,

EN60825 (TUV)

AT-FS238A/2-10

2 port single strand fiber media converter, 10/100TX (RJ-45) to 100FX (SC) (1310nm TX/1550nm RX) with 12vDC power supply and distances up to 40km

-FS238B/1-10

2 port single strand fiber media converter, 10/100TX (RJ-45) to 100FX (SC) (1550nm TX/1310nm RX) with 12vDC power supply and distances up to 15km

AT-FS238B/2-10

t single strand fiber media con

2 por (RJ-45) to 100FX (SC) (1550nm TX/1310nm RX) with 12vDC power supply and distances up to 40km

Emission FCC Part 15 Class B, EN55022 Class B Immunity

EN55024

Associated Products

AT-PWR237-11

12vDC po

er supply with screw terminals

1 SMF = Single-mode fiber

2 Launch power is

measured at one meter from the transmitter

3 Launch power (Avg.) is

power coupled into a single-mode fiber

1 SMF = Single-mode fiber

verter, 10/100TX

19800 Nor

ters

th Creek Parkway | Suite 200 | Bothell | WA 98011 | USA | T: +1 800 424 4284 | F: +1 425 481 3895

pore | 534182 | T: +65 6383 3832 | F: +65 6383 3830

Singa

ai Seng Link

www.alliedtelesis.com

. All rights reser ved.Information in this document is subject to change without notice . All company names, logos, and product designs that are trademarks or registered trademarks are the proper ty of their respective owners. 617-00520 Rev E

elesis Inc

Allied

2007