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Data Sheet
ASMi-54LRT
SHDSL.bis Modem with Integrated Router
• SHDSL.bis modem with integrated router for small/medium businesses (SOHO/SME users)
SHDSL.bis IP router
transporting Ethernet
and E1 traffic at high
speed over copper
• Data rates of up to 5.7 Mbps over 2-wire, 11.4 Mbps over 4-wire or 22.8 Mbps over
8-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 to
G.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, dedicated
managed SHDSL.bis router that extends
the range of high-speed services over
existing copper pairs. The router is used
for Ethernet and E1 service extension at
rates of up to 22.8 Mbps using bonding
technology.
Using TC-PAM 16 or TC-PAM 32 line coding
SHDSL.bis technology, the router can
operate in full-duplex mode over
2/4/8-wire lines at data rates of up to
5.7/11.4/22.8 Mbps.
The Access Company
ASMi-54LRT
SHDSL.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, the
DSL interface adapts its rate to the
condition of the line (noise, loop
attenuation, etc.). When disabled, the DSL
line operates at a fixed rate selected by
the user.
ASMi-54LRT can operate as a CO device or
a CPE device according to user
configuration.
QUALITY OF SERVICE
ASMi-54LRT features QoS mechanisms to
ensure that sudden drop in connectivity
speed is taken into account when
prioritizing and transmitting real time
service-related data packets. In router
mode DSCP (Differentiated Services Code
Point) method is available for packet
prioritization. DSCP enhances best effort
internet services by differentiating traffic
by users, service requirements and other
criteria.
The modem implements the IEEE's 802.1q
standards to provide VLAN-tagging with
four levels of prioritization, enabling
carriers to offer differentiated Ethernet
services. VLAN tagging can also be
employed for separating traffic, ensuring
transparency of the customer traffic and
bolstering security of management traffic.
The user can activate or deactivate the
priority mechanism, and each priority
(VLAN priority, DSCP or per port) can be
mapped to one of four priority queues. In bridge mode the following methods are
available 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 being
transmitted over the other wires in the
group. The capacity of the group does not
decrease when a new link is added at a
lower rate.
•
802.1p (VLAN) priority
•
Per Port priority – enable priority per
ETH port.
These schemes allow users to define
different QoS levels according to
application 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 accordance
with Metro Ethernet Forum (MEF)
standards). In this mode, all the
Ethernet traffic reaching one of the
ports is forwarded to the other port,
and vice versa
By using VLANs for classification: (a
mode identified as aware in
accordance with Metro Ethernet Forum
(MEF) standards). In this mode,
Ethernet traffic reaching one of the
ports is forwarded to another port in
accordance with its VLAN identifier.
Specific rate limitation can be applied per
port.
IP ROUTER
ASMi-54LRT incorporates a bridge or
built-in router for secure and efficient
Layer-3 IP connectivity over packet
switched networks.
ASMi-54LRT can be set to use static or
dynamic routing. Dynamic (NAPT) routing
automatically adjusts packet routes over
the network from LAN to WAN, whereas
static (NAT) routing specifies a fixed
routing 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, the
device performs bidirectional NAT (maps a
private single host IP address on the LAN
to a single public IP address on the WAN
subnet) for opening private IP services to
the public network.
The network connection can be configured
as one of three types: DMZ (enabling
access 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-54LRT
SHDSL.bis Modem with Integrated Router
MANAGEMENT
PHYSICAL
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 data
encryption through the Internet from the
LAN interface.
Up to eight SHDSL repeaters can be
installed 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 of
service (DoS) and distributed denial of
service (DDoS) attacks.
The modem is encased in a compact
half-19” plastic enclosure that can be
mounted alone or in pairs in a 19-inch
rack using RAD’s optional rack mount kits
(see Ordering). The modem is available in
extended temperature versions (by special
request).
Data Sheet
Specifications
LINE INTERFACE
Line Type
Symmetrical PSD
2/4/8-wires unconditioned dedicated line
(twisted pair)
EFM Bonding
Per IEEE802.3ah and ITU-T G.991.2 (for
Ethernet only)
Line Coding
16 or 32 TC-PAM
Line Rate
For EFM: 192 to 5696 kbps in steps of
n x 64 kbps for each 2-wire line
For HDLC: 192 to 22784 kbps in steps of
n 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 INTERFACE
CONTROL PORT
Coding
HDB3
Interface
V.24/RS-232
Line Impedance
120Ω, balanced
75Ω, unbalanced (via adapter cable)
Type
DCE
Jitter Performance
As per ITU G.823
Connector
RJ-45
Diagnostics
Local analog loopback
Remote digital loopback
Format
Asynchronous; 8 bits, 1 stop bit, no parity
Data Rate
9.6, 19.2, 115.2 kbps
Connector
9-pin, D-type, female
ETHERNET BRIDGE
Interface
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
2.8
Connectors
RJ-45
4096
3.2
2.0
4608
3.0
1.9
Compliance
ITU-T G.991.2, ETSI TS 101524
5696
2.6
1.6
ASMi-54LRT
SHDSL.bis Modem with Integrated Router
ETHERNET ROUTER/BRIDGE
INDICATORS
Interface
10/100BaseT 4-port switch·
Front Panel
PWR (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
Firewall
Stateful packet inspection
IP VPNs
Tunnels: IPsec IPsec encryption: AES, DES, 3DES IPsec tunnel mode: AH and ESP with SHA1 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 and
COS/TOS mapping (bridge mode)
EFM
IEEE 802.3 2BASE-TL (was 802.3ah) Management
Telnet Web-based configuration for LAN and
WLAN settings by end-users (can be
turned off) SNMP v1/v3 Upload/download of configuration and
binaries via FTP/TFTP Global 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 the
alarm buffer
Off: no alarms are present in the alarm
buffer
SHDSL SYNC (green/red) –
Green: the SHDSL line is synchronized
and can pass data
Green flashing: the SHDSL line is in
training process
Red flashing: the SHDSL line is in
PAF/M- pair establishment stage
Red: the SHDSL line is either not
synchronized, 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 (in
framed mode only) or unframed AIS is
received on the E1 port
E1 REM (red) On: Remote alarm is received on the
E1 port
Data Sheet
GENERAL
Power Supply
Wide-range AC/DC: 100 to 240 VAC,
-48 to -60 VDC nominal
DC: 24 VDC nominal
Timing
For 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
Physical
Height: 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
Router
Line
ASMi-54LRT
3
2W/4W
2W/4W
2W/4W/8W
2W/4W
2W/4W/8W
Data Sheet
ASMi-54LRT
SHDSL.bis Modem with Integrated Router
STANDARD CONFIGURATIONS
ASMi-54LRT/4ETH/2W
SUPPLIED ACCESSORIES
ASMi-54LRT/$/#/*/@/^
Power cord
Legend
AC/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 power
supply):
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 E1
interface):
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/E1
Interface adapter cable for converting a
balanced E1 RJ-45 connector into a pair
of BNC unbalanced coaxial connectors
Extended temperature for device with
4 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 special
request)
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