- Allied Telesis, Inc. Switches Specification Sheet

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
8k addresses
F
orwarding/filtering rate
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
.5A max.
P
o
w
er consumption 24W 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
Fiber Optic Receiver
Fiber Optic Datalink
Fiber Optic Loss Specification (Benchmark)
Environmental Specifications
Operating temp. 0°C to 40°C (32°F to 104°F)
Storage temp.
-20
°
C to 70°C (-13°F to 158°F)
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)
Emission FCC Part 15 Class B, EN55022 Class B
Immunity
EN55024
AT-FS238 | 2 Port Fast Ethernet Single Strand Speed/Media Converting Switch
USA Headquar
ters
|
19800 Nor
th Creek Parkway | Suite 200 | Bothell | WA 98011 | USA | T: [phone] | F: [phone]
European Headquarters | Via Motta 24 | 6830 Chiasso | Switzerland | T: +41 91 69769.00 | F: +41 91 69769.11
Asia-Pacific Headquar
ters
|
11
T
ai Seng Link
|
Singa
pore | 534182 | T: [phone] | F: [phone]
www.alliedtelesis.com
©
2007
Allied
T
elesis Inc
. All rights reserved. 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 property of their respective owners. 617-00520 Rev E
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
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
A
T
-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
2 por
t single strand fiber media con
verter, 10/100TX
(RJ-45) to 100FX (SC) (1550nm TX/1310nm RX) with
12vDC power supply and distances up to 40km
Associated Products
AT-PWR237-11
12vDC po
w
er supply with screw terminals
Model Fiber Type
1
Fiber Optic
Diameter
(Microns)
Optical
Wavelength
Launch Power (dBm)
2
Min.
Avg.
2
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
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
Model Fiber Type
1
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
A
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
1 SMF = Single-mode fiber
Model Fiber Type
1
Minimum
Power/Link
Budget
Minimum
Operating
Distance
2
Minimum
Operating
Distance
3
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)
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
situations without any other loss factor
Fiber Type
1
Fiber Optic
Diameter
(Microns)
Optical
Wavelength
Typical
Loss
Factor
Bandwidth
SMF (SC) 9/125 1310nm 0.4dBm n/a