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ASMi-54LRTSHDSL.bis Modem with Integrated Router• SHDSL.bis modem with integrated router for small/medium businesses (SOHO/SME users)

SHDSL.bis IP routertransporting Ethernet
and E1 traffic at highspeed over copper• Data rates of up to 5.7 Mbps over 2-wire, 11.4 Mbps over 4-wire or 22.8 Mbps over8-wire lines• Dual Bearer mode for E1 and Ethernet HDLC over 2-wire and 4-wire lines• SHDSL bonding – for EFM: PAF according to IEEE802.3, for HDLC: M-Pair according toG.991.2• 4-port 10/100BaseT interface with integrated bridge or router packet forwarding• Fully compatible with ASMi-54/ASMi-54L standalone modem

links
ASMi-54LRT is a cost-effective, dedicatedmanaged SHDSL.bis router that extends
the range of high-speed services overexisting copper pairs. The router is used
for Ethernet and E1 service extension atrates of up to 22.8 Mbps using bonding
technology.

Using TC-PAM 16 or TC-PAM 32 line coding
SHDSL.bis technology, the router canoperate in full-duplex mode over
2/4/8-wire lines at data rates of up to5.7/11.4/22.8 Mbps.

The Access Company

ASMi-54LRTSHDSL.bis Modem with Integrated Router

The SHDSL line features TPS-TC framing
64/65o for EFM (IEEE802.3) and HDLC
(G.991.2) encapsulation.
ASMi-54LRT performs line probing
according to G.991.2. When enabled, theDSL interface adapts its rate to thecondition of the line (noise, loopattenuation, etc.). When disabled, the DSL
line operates at a fixed rate selected bythe user.
ASMi-54LRT can operate as a CO device ora CPE device according to user
configuration.

QUALITY OF SERVICE
ASMi-54LRT features QoS mechanisms toensure that sudden drop in connectivity
speed is taken into account whenprioritizing and transmitting real time
service-related data packets. In routermode DSCP (Differentiated Services CodePoint) method is available for packet
prioritization. DSCP enhances best effort
internet services by differentiating traffic
by users, service requirements and othercriteria.

The modem implements the IEEE's 802.1q
standards to provide VLAN-tagging withfour levels of prioritization, enabling
carriers to offer differentiated Ethernetservices. VLAN tagging can also be
employed for separating traffic, ensuringtransparency of the customer traffic andbolstering security of management traffic.
The user can activate or deactivate thepriority mechanism, and each priority(VLAN priority, DSCP or per port) can bemapped to one of four priority queues.

In bridge mode the following methods areavailable for packet prioritization:

EFM BONDING•DSCP

EFM bonding on the Ethernet interface
ensures that a failure or addition of a link
does not drop the traffic beingtransmitted over the other wires in thegroup. The capacity of the group does notdecrease when a new link is added at alower rate.

•802.1p (VLAN) priority•Per Port priority – enable priority per
ETH port.

These schemes allow users to define
different QoS levels according toapplication requirements.

Figure 1. High Speed Internet Service for Small/Medium Businesses, Point-to-PointData Sheet

The internal forwarding of Ethernet traffic
can be configured in two ways:••

By specifying the ports (a mode
identified as unaware in accordancewith Metro Ethernet Forum (MEF)
standards). In this mode, all theEthernet traffic reaching one of theports is forwarded to the other port,
and vice versa
By using VLANs for classification: (amode identified as aware inaccordance with Metro Ethernet Forum(MEF) standards). In this mode,
Ethernet traffic reaching one of theports is forwarded to another port inaccordance with its VLAN identifier.

Specific rate limitation can be applied perport.

IP ROUTER
ASMi-54LRT incorporates a bridge orbuilt-in router for secure and efficient
Layer-3 IP connectivity over packet
switched networks.
ASMi-54LRT can be set to use static ordynamic routing. Dynamic (NAPT) routing
automatically adjusts packet routes overthe network from LAN to WAN, whereas
static (NAT) routing specifies a fixedrouting path from LAN to WAN to enable
access to servers in the Local Area Network.

The device uses dynamic NAPT to map
multiple LAN IP addresses to a single
public IP address, so that outgoing LAN
traffic appears to originate from a single
device – the ASMi-54LRT. Additionally, thedevice performs bidirectional NAT (maps aprivate single host IP address on the LANto a single public IP address on the WANsubnet) for opening private IP services tothe public network.

The network connection can be configured
as one of three types: DMZ (enablingaccess to the public servers), WAN, or LAN.
The router features three IP interfaces:•WAN on the SHDSL link,•

LAN on ETH-1, ETH-2 and ETH-3 links•

DMZ on ETH-4 link.

Figure 2. High Speed Internet service for Small/Medium Businesses, Point-to-Multipoint

ASMi-54LRTSHDSL.bis Modem with Integrated Router

MANAGEMENTPHYSICAL

The ASMi-54LRT unit can be managed
using the following connections:ASMi-54LRT is available with several power
supply options:•Local RS-232 terminal••Telnet server, SNMP (Ver.1)

AC/DC wide range (100 to 240 VAC,-48 to -60 VDC nominal)•Web server•

24 VDC.

Protective measures include rate limiting
for ingress packets of vulnerable types .

•Inband management with or without
dedicated VLAN.

VPN
ASMi-54LRT integrates IPSEC VPN
capabilities. This allows establishing a
Virtual Private Network (VPN) for
connection of branch offices using dataencryption through the Internet from theLAN interface.

Up to eight SHDSL repeaters can beinstalled in line to increase the operation
range of E1- and Ethernet-based modems.

Firewall
A Solid Firewall™ protection for the LAN
and the DMZ sub-network, provides
security against unauthorized network
access, including malicious denial ofservice (DoS) and distributed denial ofservice (DDoS) attacks.

The modem is encased in a compact
half-19” plastic enclosure that can bemounted alone or in pairs in a 19-inchrack using RAD’s optional rack mount kits(see Ordering). The modem is available inextended temperature versions (by specialrequest).

Data SheetSpecifications
LINE INTERFACE
Line TypeSymmetrical PSD
2/4/8-wires unconditioned dedicated line
(twisted pair)
EFM Bonding
Per IEEE802.3ah and ITU-T G.991.2 (forEthernet only)Line Coding
16 or 32 TC-PAM
Line Rate
For EFM: 192 to 5696 kbps in steps ofn x 64 kbps for each 2-wire line
For HDLC: 192 to 22784 kbps in steps ofn x 64 where n=89/178/356 for
2W/4W/8W
SHDSL Reference Clock
E1+Ethernet user interfaces:
Clock Mode 1 or 2
Ethernet only user interface:
Clock Mode 3a

E1 INTERFACECONTROL PORTCoding
HDB3Interface
V.24/RS-232

Line Impedance120Ω, balanced75Ω, unbalanced (via adapter cable)

TypeDCE

Jitter Performance
As per ITU G.823
Connector
RJ-45
Diagnostics
Local analog loopback
Remote digital loopback

FormatAsynchronous; 8 bits, 1 stop bit, no parity
Data Rate
9.6, 19.2, 115.2 kbps
Connector
9-pin, D-type, female
ETHERNET BRIDGEInterface
10/100BaseT
Connectors
4 x RJ-45
Frame Size
1580 bytes

Range

Data Rate[kbps]

Range[km][miles](26 AWG, noise-free, per pair):

192

6.6

4.1

Impedance
135Ω

1536

4.9

3.0

2048

4.5

2.8Connectors
RJ-4540963.2

2.04608

3.0

1.9

Compliance
ITU-T G.991.2, ETSI TS 101524

5696

2.6

1.6

ASMi-54LRTSHDSL.bis Modem with Integrated Router

ETHERNET ROUTER/BRIDGE

INDICATORSInterface
10/100BaseT 4-port switch·Front PanelPWR (green) –On: power supply is on
Off: power supply is off

Connectors
4 x RJ-45
IP Addressing & Routing
NAPT (Dynamic)
Static NAT (Bidirectional)
Security
FirewallStateful packet inspection
IP VPNs
Tunnels: IPsec
IPsec encryption: AES, DES, 3DES
IPsec tunnel mode: AH and ESP withSHA1 and MD-5 hashing
Bridging and VLANs
Bridging or Integrated Routing
VLAN tagging and untagging
Multiple VLAN IDs per port (bridge mode)
802.1p priority tagging, TOS/COS andCOS/TOS mapping (bridge mode)
EFM
IEEE 802.3 2BASE-TL (was 802.3ah)
ManagementTelnet
Web-based configuration for LAN andWLAN settings by end-users (can beturned off)
SNMP v1/v3
Upload/download of configuration andbinaries via FTP/TFTPGlobal statistics screens (terminal,web‐based)
Event and trace buffering alarms

TST (yellow) –On: a test is active
Off: no test is active
ALM (red) –On: a new alarm is detected in thealarm buffer
Off: no alarms are present in the alarmbuffer
SHDSL SYNC (green/red) –Green: the SHDSL line is synchronized
and can pass data
Green flashing: the SHDSL line is intraining process
Red flashing: the SHDSL line is in
PAF/M- pair establishment stage
Red: the SHDSL line is either notsynchronized, or in training process
or in PAF/M-pair establishment
stage
Rear Panel
Ethernet Ports LINK/ACT (per port)
ACT (yellow) –Flashing: Ethernet traffic on the port
LINK (green) –On: Ethernet port link is up
Off: No Ethernet link on the port
E1 LOC (red) On: Loss of signal or sync loss (inframed mode only) or unframed AIS is
received on the E1 port
E1 REM (red) On: Remote alarm is received on theE1 port

Data Sheet

GENERAL
Power Supply
Wide-range AC/DC: 100 to 240 VAC,
-48 to -60 VDC nominal
DC: 24 VDC nominal
TimingFor CO:Internal – derived from the modem
External – derived from E1 port
For CPE:
Receive – derived from the SHDSL line

Performance Monitoring
SHDSL and E1 statistics collection
PhysicalHeight: 43.7 mm (1.7 in)
Width: 217 mm (8.5 in)
Depth: 170 mm (6.7 in)
Weight: 0.6 kg (1.2 lb)
Environment
Temperature: 0°C – 50°C (32°F – 122°F)
Extended temperature (4 X ETH interface
version only): -20°C to 70°C (-4°F to 158°F)
Humidity: Up to 90%, non-condensing

Modem Comparison Chart
ASMi-52

ASMi-52L

ASMi-54

Max. data rate(Mbps)

2.3/4.6

2.3/4.6

5.7/11/22

Interface

V.35, RS-530, X.21,E1, ETH

V.35, X.21, E1, ETH, 4 x ETH, E1/4 x E1
4 x ETH

ASMi-54L

5.7/11.4 (11.4/15 per 5.7/11
pair with license key)
4 x ETH, E1
4 x ETH, E1

RouterLine

ASMi-54LRT

32W/4W

2W/4W

2W/4W/8W

2W/4W

2W/4W/8W

Data Sheet
ASMi-54LRTSHDSL.bis Modem with Integrated Router

STANDARD CONFIGURATIONS
ASMi-54LRT/4ETH/2W

SUPPLIED ACCESSORIES

ASMi-54LRT/$/#/*/@/^

Power cord

LegendAC/DC adapter for -48 VDC$ASMi-54LRT/4ETH/2W/E1
ASMi-54LRT/4ETH/4W
ASMi-54LRT/4ETH/4W/E1#ASMi-54LRT/4ETH/8W*@^

International Headquarters
24 Raoul Wallenberg Street
Tel Aviv 69719, Israel
Tel. 972-3-6458181
Fax 972-3-6498250, 6474436
E-mail market@rad.com

www.rad.com

Optional DC power supply(Default=wide-range AC/DC powersupply):
24V 24 VDC power supply
Ethernet interface (mandatory):
4ETH Four-port ETH module with
4 x RJ-45 connectors
SHDSL interface:
2W
2-wire (1 pair)
4W
4-wire (2 pairs)
8W
8-wire (4 pairs) (for Ethernet
only version)
User interface (Default=no E1interface):
E1
With E1 interface

OPTIONAL ACCESSORIES
RM-33-2
Hardware kit for mounting one or two
plastic ASMi-54L units in a 19-inch rack
CBL-DB9F-DB9M-STR
Standard 9-pin male to female RS-232
control port cable
CBL-RJ45/2BNC/E1Interface adapter cable for converting abalanced E1 RJ-45 connector into a pairof BNC unbalanced coaxial connectors

Extended temperature for device with4 X ETH interface(Default=0°C–50°C/32°F–122°F):
ETR -20°C to 70°C (-4°F to 158°F)
range (according to specialrequest)

North America Headquarters
900 Corporate Drive
Mahwah, NJ 07430, USA
Tel. 201-5291100
Toll free 1-800-4447234
Fax 201-5295777
E-mail market@radusa.com

Order this publication by Catalog No. 803951

The Access Company

503-120-09/11 (2.1) Specifications are subject to change without prior notice. © 1989–2011 RAD Data Communications Ltd. The RAD name, logo, logotype, and the terms EtherAccess, TDMoIP and TDMoIP Driven,and the product names Optimux and IPmux, are registered trademarks of RAD Data Communications Ltd. All other trademarks are the property of their respective holders.

Ordering

SPECIAL CONFIGURATIONS