Data Sheet

Megaplex-4

ASMi-54C

Ethernet and TDM over SHDSL/SHDSL.bis 8-Port

Modules

• 16-wire modules for Ethernet and TDM services over 8W (4-pair), 4W (2-pair), or 2W

(1-pair) SHDSL/SHDSL.bis lines

• SHDSL: Data rates of up to 22.8 Mbps for 8W, up to 11.4 Mbps for 4W and up to

5.7 Mbps for 2W

• EFM extended rate for ASMi-54L: Data rates of up to 15.3 Mbps per 2W

• Remote power feeding over 4 wires

• Extended range with RAD’s SHDSL/SHDSL.bis repeater

• Two copper/fiber Ethernet interface ports for local Ethernet termination

• EFM (Ethernet First Mile) or M-pair bonding over SHDSL/SHDSL.bis

ASMi-54C is a family of SHDSL/SHDSL.bis

Ethernet and TDM modules for the

Megaplex-4 chassis that delivers digital data to customer premises over existing copper cables of the distribution network.

SHDSL/SHDSL.BIS

ASMi-54C modules provide a simple, low-cost connectivity solution using High

Speed Digital Subscriber Line

(SHDSL/SHDSL.bis) technology, as standardized by ITU-T Rec. G.991.2.

The ASMi-54C family includes three main module types:

• ASMi-54C/ETH –Ethernet over

SHDSL.bis 8-port module with EFM support

• ASMi-54C/E1/N - E1 over

SHDSL/SHDSL.bis 8-Port module

(starting from version 3.0)

• ASMi-54C/E1/ETH/N –E1 and Ethernet over SHDSL/SHDSL.bis 8-port module, with optional remote power feeding .

(starting from version 3.0)

Note: ASMi-54C/E1/N and ASMi-54C/E1/ETH/N modules cannot work with a mix of ASMi-54/54L and ASMi-52/52L modems at the far end.

Each SHDSL/SHDSL.bis port is a multirate

SHDSL/SHDSL.bis modem transmitting at user-selectable data rates of up to

5.7 Mbps on each pair.

Using TC-PAM 64 line coding technology, the modems operate in full-duplex mode at up to 15 Mbps per port.

ASMi-54C can operate as a Central

SHDSL.bis (STU-C) or Remote (STU-R)

SHDSL.bis Termination Unit working with up to 8 standalone devices or another

ASMi-54C module.

When providing Ethernet services and operating as STU-R, ASMi-54C performs line probing according to G.991.2. The DSL interface can be configured to adapt its rate to the condition of the line (noise, loop attenuation, etc.) or operate at a fixed user-selected rate. The SHDSL line performs TPS-TC framing 64/65 for EFM

(IEEE 802.3) and HDLC (G.991.2).

The processing and switching of Ethernet traffic over TDM (SHDSL) links is configured by means of PCS (Physical

Coding Sublayer) using EFM or HDLC as the

Layer-2 protocol.

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 is not affected when a new link is added at a lower rate.

ETHERNET

The Ethernet services are provided by means of an internal Layer-2 Ethernet switch that fully complies with the IEEE

802.3/Ethernet V.2 standards, and has full

VLAN support.

The external Ethernet ports can be ordered with two types of interfaces:

• 10/100BaseTx interfaces terminated in

RJ-45 connectors.

• SFP Sockets for Fast Ethernet transceivers. RAD offers a wide variety of SFPs, for meeting a wide range of operational requirements.

The Ethernet switch switches traffic between the module Ethernet ports and bundles, including ETH over SHDSL, and the CL module Ethernet subsystem (for connection via the CL GbE ports to a packet-switched network, or for transmission through the SDH network via virtually concatenated groups (VCGs).

ASMi-54C implements the IEEE's 802.1Q standards to provide VLAN-tagging with

ASMi-54C

Ethernet and TDM over SHDSL/SHDSL.bis 8-Port Modules

levels of prioritization, enabling carriers to offer differentiated Ethernet services.

VLAN tagging can also be employed to separate traffic, ensuring transparency of the customer traffic and bolstering security of management traffic.

TDM

E1 services are provided by /N options of the ASMi-54C module.

To increase the available SHDSL range, two or four pairs can be bonded to operate in the M-pair (HDLC) mode specified in ITU-T Rec. G.991.2. Bonding is available for lines handled by the same

SHDSL section (the section handling either ports 1 to 4, or ports 5 to 8).

The external line ports feature userselectable, balanced (120Ω) or unbalanced

(75Ω) DSU interfaces. The framing mode is also user-selectable, in accordance with the required processing of the port traffic:

G.704 basic with or without CRC-4, or unframed.

The DS0 cross-connect matrix of the

Megaplex-4 chassis enables flexible payload routing in the ASMi-54C/N modules, independently configurable for each port, at the individual timeslot (DS0) level.

REMOTE POWER FEEDING AND

EXTENDED RANGE

All the ASMi-54C modules have a remote power feeding version that delivers power and data over 4 wires to remote

SHDSL/SHDSL.bis modems or repeaters.

Power feeding for each individual line is connected/disconnected via a software command. The power feeding status for each line and report of current overload conditions are displayed via CLI.

SDHSL EFM data transmission range can be significantly extended with RAD’s new

S-RPT/EFM repeater, using EFM bonding technology with local or remote power feeding, thus greatly enhancing RAD’s solution for migration to Next Generation networks.

The module receives the power from the external MPF power feeder.

MANAGEMENT

Setup, control, and diagnostics are performed in the following ways:

• Via ASCII terminal connected to a supervisory port on the Megaplex-4 CL module

• Via management station connected to a dedicated 10/100BaseT Ethernet port on the Megaplex-4 CL module

• Using inband management with dedicated VLAN for managing remote units (ASMi-54/ASMi-54L.)

• Using EOC from the central ASMi-54C module for managing remote units

(ASMi-52/ASMi-52L/ASMi-53).

MONITORING AND DIAGNOSTICS

Performance statistics for the SHDSL,

Ethernet, PCS (Physical Coding Sublayer) and E1 ports may be obtained and analyzed via the Megaplex-4 management system.

Headquarters

NMS

S-RPT/EFM

S-RPT/EFM

SHDSL.bis

Branch

ASMi-54L

FE

LAN

SDH/SONET ETH

Branch

STM-4/

OC-12

GbE

2W/4W (EFM)

SHDSL/SHDSL.bis

5.7/11.4 Mbps (ASMi-53)

15/30 Mbps (ASMi-54L)

FE

ASMi-54L/

ASMi-53

Megaplex-4

IP/MPLS 120 VDC

Branch

E1

MPF

SHDSL/SHDSL.bis

PBX

ASMi-52/

ASMi-54/

ASMi-53

FE

Router

Figure 1. TDM/Ethernet Services over Copper and Fiber Infrastructure and Ethernet Service Extension over Copper

Leased Lines

Data Sheet

Specifications

SHDSL/SHDSL.bis INTERFACE

Number of Ports

8

Number of Wires

2, 4, 8

Compliance

ITU-T G.991.2, ETSI TS 101524

Max. Data Rate

See Table 2

Line Coding

With remote ASMi-52/52L: TC-PAM 16

With remote ASMi-54, ASMi-53: TC-PAM

16/32

With remote ASMi-54L: TC-PAM 16/32/64

Impedance

135 Ω

Connectors

DB-26 convertible to 8 RJ-45 connectors via adaptor cable (regular model)

Typical Range

See Table 1

FAST ETHERNET INTERFACE

Number of Ports

2 UTP (RJ-45 shielded) or 2 SFP sockets

SFP Transceivers

For full details, see the SFP Transceivers data sheet on www.rad.com

Note. It is strongly recommended to order this device with original RAD SFPs. RAD cannot guarantee full compliance to product specifications for units using non-RAD SFPs.

Data Rate

10/100 Mbps (Fast Ethernet)

Autonegotiation (copper only)

Maximum Frame Size

ASMi-54C/N (all models): 9600 bytes

ASMi-54C/ETH: 1522 bytes

E1 INTERFACE

Number of Ports

8

Coding

HDB3

Line Impedance

Balanced E1: 120Ω

Unbalanced E1: 75Ω (via adapter cable)

E1 Jitter Performance

As per ITU-T G.823

Indicators (per ETHERNET port)

ASMi-54C/N

LINK/ACT (green)

10/100 (yellow)

ASMi-54C

LINK (green) – LAN link integrity

ACT (yellow) – LAN data activity

Connector

DB-44 convertible to RJ-45 or BNC connectors via adaptor cables or patch panel

DIAGNOSTICS

(ASMi-54C/N only)

• Local and remote loopbacks on local

E1 ports, per port and per timeslot

• Local and remote loopbacks on local

E1-i ports connected to the corresponding remote SHDSL ports, per port and per timeslot

• Remote-on-remote inband loopbacks on SHDSL ports, per port

• BER Test on local framed E1 and E1-i ports, per timeslot

• BER Test on local unframed and whole framed E1 and E1-i ports, per port

Performance Monitoring

Per ITU-T Rec G.991.2, G.826

GENERAL

Power Consumption

ASMi-54C/ETH: 14.5W

ASMi-54C/ETH/UTP/RPF: 14.8 W

ASMi-54C/E1/N: 7.3W

ASMi-54C/E1/ETH/N: 12W

ASMi-54C/E1/ETH/UTP/N/RPF: 12.3W

Note: When power feeding is enabled, additional power consumption from MPF (see MPF Data

Sheet) should be taken into account.

Remote Power Feed

Number of Remote Units: Up to 8

Power Feeding: 120 VDC at 70 mA maximum per line

Table 1. Typical Ranges over 2W@26 AWG Cable

Environment

Operating temperature:

ASMi-54C/ETH: -10°C to 55°C

(14°F to 131°F)

ASMi-54C/N: 0°C to 45°C (32°F to

113°F)

Storage temperature: -20°C to

70°C (-4°F to 158°F)

Humidity: up to 95%, noncondensing

Data Rate

[kbps]

192

1536

2048

4096

4608

5696

15296

Ranges

[km] [mi]

6.6h

4.9

4.5

3.2

3.0

2.6

0.70

4.1

3.0

2.8

2.0

1.9

1.6

0.43

Notes The SHDSL data rate depends on the module type, distance, number of wires and far-end device.

The typical ranges are based on error-free lab tests without noise and obtained on a 26 AWG cable line simulator (DLS-

400). For ASMi-52/52L on the far end, only data rates up to

2048 are relevant.

Data Sheet

ASMi-54C

Ethernet and TDM over SHDSL/SHDSL.bis 8-Port Modules

Ordering

RECOMMENDED CONFIGURATIONS

MP-4100M-ASMi-54C/E1/N

E1 over SHDSL/SHDSL.bis 8-Port Module

MP-4100M-ASMi-54C/ETH/UTP

Ethernet over SHDSL.bis 8-port module with UTP connectors

MP-4100M-ASMi-54C/E1/ETH/UTP/N

E1 and Ethernet over SHDSL/SHDSL.bis

8-port module with UTP connectors

SPECIAL CONFIGURATIONS

Please contact your local RAD partner for additional configuration options.

Line type

Remote CPE and number of wires

Data transfer

Central/Remote

EFM/M-pair

Maximum data rate, kbps

Supported in

ASMi-52

ASMi-52L

ASMi-54

ASMi-54L

ASMi-53

International Headquarters

24 Raoul Wallenberg Street

Tel Aviv 69719, Israel

Tel. 972-3-6458181

Fax 972-3-6498250, 6474436

E-mail [email protected]

North America Headquarters

900 Corporate Drive

Mahwah, NJ 07430, USA

Tel. 201-5291100

Toll free 1-800-4447234

Fax 201-5295777

E-mail [email protected]

www.rad.com

Order this publication by Catalog No. 803832

OPTIONAL ACCESSORIES

CBL-DB26-8SHDSL

Cable for splitting a single 26-pin

SHDSL.bis connector to 8 x RJ-45 connectors

Note: This cable is required for the module operation. It can either be ordered from RAD or manufactured by the customer according to pinouts provided in the manual.

CBL-G703-8/RJ45/ST

Cable for splitting the 44-pin E1 connector to 8 E1 balanced RJ-45 connectors

CBL-G703-8/RJ45/X

Cross-cable for splitting the 44-pin E1 connector to 8 E1 balanced RJ-45 connectors

CBL-G703-8/COAX

Cable for splitting the 44-pin E1 connector to 8 pairs of E1 unbalanced BNC connectors

Table 2. ASMi-54C Module Comparison

CBL-G703-8/OPEN/2M

Open-ended cable with DB-44 connector for balanced E1 applications

All cables are 2m (6.6 ft) long.

MP-PATCH-16-BNC/DB44

Low-cost adapter patch panel terminated in BNC connectors at the user’s end, for connecting several ASMi-54C/N modules to equipment with unbalanced E1 interfaces

CBL-DB44-DB44

Cable for connecting each DB-44 connector of the module to the corresponding DB-44 connector of the patch panel

ASMi-54C/ETH

SHDSL.bis

2W

N/A

N/A

+

+

+

4W

N/A

N/A

+

+

+

8W

N/A

N/A

+

-

-

ASMi-54C/E1/N

SHDSL/SHDSL.bis

2W 4W

+

+

+

+

+

+

+

+

+

+

8W

-

-

+

-

-

Ethernet data over 1, 2 or 4 pairs

E1 data over 1, 2 or 4 pairs

STU-C/ STU-R STU-C/ STU-R

EFM/M-pair

30592 (2 pairs)

Ver 2.x, Ver 3.x, Ver 4.x

M-pair

Ver 3.x, Ver 4.x

ASMi-54C/E1/ETH/N

SHDSL/SHDSL.bis

2W

+

4W

+

8W

-

+ + -

+

+

+

+

+

+

+

-

-

E1 and Ethernet data over

1, 2 or 4 pairs

STU-C/ STU-R

M-pair

22784 (2 pairs)

Ver 3.x, Ver 4.x