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ASMi-54SHDSL.bis Modem

Rail-mount
Metal
Enclosure

MetalEnclosure

PlasticEnclosure

19-inch Metal Enclosure

High-end SHDSL.bis
multiservice accessequipment

 SHDSL.bis managed modem operating at full-duplex data rates of up to 5.7 Mbps
per copper pair
 Ethernet service over 8-wire line of up to 22.8 Mbps in Point-to-Point, Multipoint,
Daisy Chain and Ring topologies
 Two platforms for Ethernet encapsulation with up to 22 Mbps throughput over8-wire lines: HDLC and SHDSL EFM bonding (in Point-to-Point topology)
 Optional 4xE1 service in addition to HDLC encapsulated Ethernet in Multipoint, Daisy
Chain and Ring topologies

The Access Company

ASMi-54SHDSL.bis Modem

ASMi-54 is a simple, cost-effective,
dedicated managed SHDSL.bis modem that
extends the range of high-speed services
over existing copper pairs.
The modem features a variety of topologies,
which extend up to 4 E1 and 4 ETH ports
with integrated switch to the SHDSL line.
ASMi-54 operates in the followingtopologies:

Point-to-Point –extending traffic onfour Ethernet links at rates of up to22.8 Mbps (EFM bonding)Daisy-chain and Ring topologies for
Ethernet connectivity – ASMi-54
enables service resiliency andprotection by implementing the ITU-T
G.8032 ETH ring protection switching
standard for bandwidth of up to11.4 Mbps
Multipoint – each ASMi-54 operates
with four ASMi-54L modems to enable
extension of E1 andHDLC-encapsulated Ethernet traffic,
while connectivity towards the IP
network can be either copper or fiber,using an SFP transceiver
Point-to-Point – four Ethernet links(HDLC encapsulation) in addition tofour E1 ports, up to 22.8 Mbps.

Table 1 illustrates the topologies andfeatures supported by selected ASMi-54
options.

The modem also features line probing
according to G.991.2. When enabled, theSHDSL interface adapts its rate to thecondition of the line (noise, loopattenuation, etc.). When disabled, theSHDSL line operates at a fixed rate
selected by the user.
ASMi-54 can operate as a CO device or a
CPE device according to user
configuration.
EFM BONDING
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.
The modem transports Ethernet
point-to-point at the rate of up to
22.8 Mbps using EFM bonding technology,
which enables each link to synchronize at adifferent rate.
Note: This feature relates to Ethernet service inpoint-to-point topology only (see Table 1 fordetails).

ETHERNET SUPPORT
ASMi-54 features up to four Ethernet
10/100BaseT ports with half/full-duplex
autonegotiation and flow control.
Fault propagation enables the unit to shut
down the Ethernet user port when an
SHDSL line failure is detected. LANs areconnected by bridging.
The internal forwarding of Ethernet traffic
can be configured 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

Using VLANs for classification (a mode
identified as aware in accordance withMetro Ethernet Forum (MEF)standards). In this mode, Ethernettraffic reaching one of the ports is
forwarded to another port inaccordance with its VLAN identifier.

QUALITY OF SERVICE
The 802.1D DSCP schemes allow users todefine different QoS levels according toapplication requirements.
The modem implements the IEEE's 802.1q
standards to provide VLAN-tagging withfour levels of prioritization, enabling
carriers to offer differentiated Ethernet
services.

Figure 1. Daisy Chain over any Infrastructure for HDLC-Encapsulated Ethernet

Data Sheet

VLAN tagging can also be employed toseparate traffic, ensuring transparency ofthe customer traffic and bolstering securityof management traffic. The user canactivate or deactivate the priority
mechanism, and each priority (VLANpriority, DSCP) can be configured andmapped to one of four priority queues.

POWER

PHYSICAL

ASMi-54 is available with several power
options:

ASMi-54 is supplied in 1U-high plastic,
metal (8.5- or 19-inch), or rail-mountenclosures.

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

Redundant AC/DC wide-range power
supply configuration in a 1U-high19-inch metal enclosure (Ring andDaisy-chain topology only)24 VDC

Via power feeding of DC voltage over
the SHDSL line (4-wire and 8-wire
Ethernet versions only).

MANAGEMENT
The ASMi-54 unit can be managed using
the following connections:Local RS-232 terminal

Telnet server, SNMP (Ver.1)

Web-based management applicationInband management with or without
dedicated VLAN.

Modems with metal and plastic enclosures
can be mounted alone or in pairs in a
19-inch rack using RAD’s optional
mounting kits. Units in metal enclosure
can also be mounted in an 8.5-inch rack(see Ordering).

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

Figure 2. Fast Ethernet Services over SHDSL Supporting EFM Bonding

Table 1. Special Topologies and Features
ASMi-54 Options

Topology

EFM

ASMi-54/4ETH/8W

 Multipoint opposite LRS-102, Megaplex-4100 or Yes
ASMi-54LSFP SocketNo Point-to-Point
ASMi-54/4E1/4ETH/8W

 Multipoint opposite LRS-102, Megaplex-4100 or NoYes

ASMi-54L
 Point-to-Point
ASMi-54/4ETH/8W/D

Daisy-chain and RingNoYes

ASMi-54/4ETH/8W/M

MultipointNoYesASMi-54
SHDSL.bis ModemSpecifications

E1 INTERFACERange
Typical Ranges(26 AWG, noise-free)

SHDSL INTERFACE

Number of Ports
4 x RJ-45

Number of Ports
2

Data Rate[kbps][km][miles]Line Type
Symmetrical PSD
8-wires unconditioned dedicated line
(twisted pair)

192

6.6

4.1

1536

4.9

3.0

2048

4.5

2.8

4096

3.2

2.0

4608

3.0

1.9

EFM Bonding
Per IEEE802.3ah and ITU-T G.991.2

5696

2.6

1.6

Note: Applicable to Ethernet service in theImpedance
135Ω

ConnectorsRJ-45

point-to-point topology only.

Line Coding
16 or 32 TC-PAM

2-wireCompliance
ITU-T G.991.2, ETSI TS 101524

Frame Size
EFM: 1580 bytes
HDLC: 1530 bytes (while working with E1or repeaters)
Line Rate
EFM: 192 to 5696 kbps in steps ofn x 64 kbps for each 2-wires
HDLC: 192 to 22784 kbps in steps ofn x 64 where n = 89/178/356 for
2W/4W/8W

Coding
HDB3
Line Impedance
120, balanced75, unbalanced (via adapter cable)
Jitter Performance
As per ITU G.823
Connectors
RJ-45
Diagnostics
Local analog loopbackRemote digital loopback
ETHERNET INTERFACE
Number of Ports
4 x UTP
3 x UTP + 1 SFP socket
2 x UTP + 2 SFP socket
Interfaces
10/100BaseT
100BaseFxConnectors
n x RJ-45
n x SFP
Frame Size
2048 bytes

Figure 3. Connecting Co-located 2G/3G Base Stations Point-to-PointData Sheet

CONTROL PORTINDICATORSInterface
V.24/RS-232

Front PanelPWR (green) –On: power supply is on

TypeDCEFormat
Asynchronous; 8 bits, 1 stop bit, no parity
Data Rate
9.6, 19.2, 115.2 kbps

Rear Panel
Ethernet Ports LINK/ACT (per port)
ACT (yellow) –Flashing: Ethernet traffic on the port

TST (yellow) –On: a test is active
ALM (red) –On: a new alarm is detected in the alarmbuffer
SHDSL SYNC (green/red) –Green on: at least one line is synchronized
and can pass data
Green flashing: no line is synchronized andat least one line is in training process
Red: no line is synchronized, in training
process

Connector
9-pin, D-type, female

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 (framedmode only) or unframed AIS is received
on the E1 port
E1 REM (red) –On: Remote alarm is received on the E1port

E1

2W

BTS

5.7 Mbps
ASMi-54L
ETH
E1
Node B

4 x E1

IP/ETH
Network2W

BTS

5.7 Mbps
ASMi-54L

RNC

ETH
E1

Node B

ASMi-54
2W
TDM
NetworkBTS

5.7 Mbps
ASMi-54L

4 x ETH

ETH

BSC
E1
Node B
2W

BTS

5.7 Mbps
ASMi-54L
ETH

Node B

Figure 4. Connecting Co-located 2G/3G Base Stations Using ASMi-54 Modems over Copper LinesASMi-54
SHDSL.bis Modem

GENERAL
Power Supply
Wide-range AC/DC: 100 to 240 VAC,
-48 to -60 VDC nominal
Note: Redundant AC/DC wide-range power supply
configuration is available in a 19-inch metalenclosure (for Ring or Daisy-chain topologies only).

DC: 24 VDC nominal
Remote power feeding
Via SHDSL line, 120 VDC maximum (4-wireor 8-wire, for units with Ethernet serviceonly)
TimingCO mode:Internal – derived from the modem
External – derived from E1 port
CPE mode:Receive – derived from the SHDSL line

Performance Monitoring

PhysicalEnvironment

Plastic enclosure:
Height: 43.7 mm (1.7 in)
Width: 217 mm (8.5 in)
Depth: 170 mm (6.7 in)
Weight: 0.6 kg (1.3 lb)

Temperature: 0 to 50C (32 to 122F)
Extended temperature (4 x ETH interface
version only): -20 to 70C (-4 to 158F)
Humidity: Up to 90%, non-condensing

8.5-inch metal enclosure:
Height: 43.7 mm (1.7 in)
Width: 215.5 mm (8.5 in)
Depth: 153 mm (6.0 in)
Weight: 0.7 kg (1.5 lb)
19-inch metal enclosure:
Height: 44 mm (1.7 in)
Width: 427 mm (17.0 in)
Depth: 258 mm (10.1 in)
Weight: 4.0 kg (8.8 lb)
Rail-mount metal enclosure:
Height: 150 mm (5.9 in)Width: 70 mm (2.8 in)
Depth: 163 mm (6.4 in)
Weight: 0.9 kg (1.9 lb)

SHDSL and E1 statistics collection

E1s
Central Office
Fiber

BTS

n x E1/STM-1
IP/ETH
Network

Optimux-108
FE
RNC

BTS Site
Node B

4 x E1
LRS-102/
Megaplex-4100

TDM
Network

1 x GbEn x ETHn x E1

CopperBTSSHDSL.bis
ASMi-54

BSC

4 x FEBTS Site
Node B

Airmux-400
Wireless
E1s

BTS
Airmux-400
FE

BTS Site

Node B

Figure 5. Connecting Co-located 2G/3G Base Stations using Fiber Optic, Copper and Wireless Connections

Data SheetOrdering#ASMi-54/4ETH/8W/M

Extended temperature for device with4 ETH interfaces (Default=0 to 50C
(32 to 122F):

ASMi-54/4ETH/8W/D

ETR

ASMi-54/4ETH/8W/D/R (19-inch metal
enclosure with redundant AC/DCwide-range power supply)

Note 1: For 8W/M and 8W/D options ETR is-20 to 65C (-4 to 149F).

ASMi-54/4ETH/8W/1NULL3UTP^

Legend$Power supply (Default= wide-range
AC/DC power supply):
24VOptional 24 VDC power supply@ User interface (Default=no E1interface):
4E1

Four E1 ports

ME-20 to 70C (-4 to 158F)~

Note 2: Complies with NEBS for Ethernet
services in temperature range -5 to 55C
(23 to 131F).

SPECIAL CONFIGURATIONS
ASMi-54/$/@/#/^/*/%/~% Enclosure (Default=plastic enclosure):

4ETH Four-port ETH module(Default=4 x RJ-45 connectors)

STANDARD CONFIGURATIONS
ASMi-54/4E1/4ETH/8W

Ethernet interface (mandatory):*SHDSL interface:
8W

8-wire (For plastic enclosure
with (4ETH + 4E1) option or
metal enclosure only)

8W/D 8-wire with daisy-chain/ringcapabilities (4W on each side)
8W/M 8-wire with multipoint
capabilities
Note: 8W/D and 8W/M interfaces are for
Ethernet service only, with no EFM support.

Figure 6. Ring and Daisy-chain Capabilities

8.5-inch metal enclosure(For 8W/D or 8W/M optionsonly)

RAIL Rail-mount enclosure(For 8W with Ethernet port,8W/D and 8W/M options only)
One or two SFP sockets on the ETHinterface (Default=4 x RJ-45
connectors, no SPF sockets)
1NULL3UTP SFP socket on Port 1 +UTP Ports 2, 3, 4
2NULL2UTP SFP sockets on Ports 1,2 +UTP Ports 3, 4Note: For the 4ETH/8W/D, 4ETH/8W/M or4E1/4ETH/8W options only.

Data Sheet
ASMi-54SHDSL.bis ModemOPTIONAL ACCESSORIESCBL-DB9F-DB9M-STR
Control cable

AC power cord

RM-33-2
Hardware kit for mounting one or two
plastic ASMi-54 units in a 19-inch rackRM-35/@
Hardware kit for mounting one or two
8.5-inch metal ASMi-54 units in a 19-inchrack

CBL-RJ45/2BNC/E1Interface adapter for converting abalanced E1 RJ-45 connector into a pair of
BNC unbalanced coaxial connectors

Legend@Rack mount kit (Default=both kits):
P1

Mounting one unit

P2

Mounting two units

Modem Comparison ChartFeature

ASMi-52

ASMi-52L

ASMi-54

ASMi-54L(Ver.2.98)(Ver.2.01)(Ver.3.51)(Ver.2.66)

Max. data rate 2.3/4.6(Mbps)
V.35, RS-530, X.21,Interface
E1, ETH

2.3/4.6

5.7/11/22

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

Router-Line

2W/4W

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

ASMi-54LRT(Ver.2.1)

5.7/11/22

4 x ETH, 4 x E1

5.7/11.4 (11.4/15 perpair with license key)
4 x ETH, E1

---



2W/4W

2W/4W/8W

2W/4W

2W/4W/8W

4 x ETH, E1

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. 803759

The Access Company

503-100-06/12 (3.5) Specifications are subject to change without prior notice.  1989–2012 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.

AC/DC adapter for -48 VDC

WM-35-TYPE4
Wall mounting kit for 8.5-inch units withmetal enclosure

SUPPLIED ACCESSORIES