Transcript
ASMi-51 2-wire MSDSL Modem with Remote Management
FEATURES
• 2-wire MSDSL modem with
remote management, extending data transmission to 6.6 km (4.1 miles) • Supports multiple data rates between 64 kbps and 2304 kbps • Utilizes MSDSL 2B1Q line coding for extended range and improved quality • Supports variety of data interfaces, as well as built-in Ethernet bridge and router
Order from: Cutter Networks
• Provides an embedded
operation channel for end-to-end system management and supervision • Setup, control and monitoring via an ASCII terminal connected to the ASMi-51 supervisory port • Extensive diagnostics, including loopbacks, BER testing and MSDSL performance monitoring
Ph:727-398-5252/Fax:727-397-9610
• Automatic rate detection in
external clock mode for tail-end applications of standalone ASMi-51 units • High voltage line protection in compliance with ITU K.21 • Available as quad or dual-modem card for RAD’s LRS-24 modem rack with SNMP management
www.bestdatasource.com
ASMi-51 2-wire MSDSL Modem with Remote Management DESCRIPTION
• ASMi-51 is managed via an ASCII
Table 1. Typical ASMi-51 Ranges over 24 AWG Lines
terminal connected to the modem's supervisory port. The ASMi-51CQ and ASMi-51CD modem cards installed in the LRS-24 modem rack can also be managed via RADview SNMP network management application. The embedded menu-driven management software allows to control the following parameters: ! Baud rate selection (when the modem is configured as Central) ! Clock source selection ! Loopback and BERT activation ! MSDSL statistics collection ! Real time alert of fault conditions ! Installing new software releases.
• ASMi-51, Multirate Single Pair
Digital Subscriber Line (MSDSL) modem, operates in full duplex mode over 2-wire lines.
• ASMi-51 supports multiple data
rates, user-selectable to n × 64 kbps, where n = 1, 2, ..., 32, 36.
• ASMi-51 employs MSDSL 2B1Q
technology to extend the transmission range (see Table 1) and provide efficient transmission, even over poor quality lines.
• ASMi-51 supports a wide range of
digital interfaces: RS-530, V.35, V.35A, X.21, V.36/RS-449 and G.703 E1. In addition, the modem supports Ethernet interface modules with a built-in bridge (IR-ETH, IR-ETH/Q) or an IP router (IR-IP), which allow LAN-to-LAN connectivity using MSDSL technology.
Data Rate
• When set to external mode, the
standalone ASMi-51 automatically detects the clock rate coming from the digital interface and sets the remote unit to the same rate. When the digital interface rate is changed, both local and remote units follow the new rate and synchronize accordingly.
• The modem uses an Embedded Operation Channel (EOC) for controlling and monitoring the remote unit. The management channel operates without interfering with the data transmission.
• ASMi-51CQ and ASMi-51CD card
Range
kbps
km
miles
64, 128, 192
6.6
4.1
256
6.2
3.9
320, 384
5.9
3.6
448
5.7
3.5
512
5.5
3.4
576, 640
5.2
3.2
704, 768
4.9
3.0
832
4.6
2.9
896, 960
4.5
2.8
1024
4.4
2.7
1088, 1152
4.2
2.6
1216, 1280
4.1
2.5
1344–1536
3.7
2.3
1600–2048
3.2
2.0
2304
3.0
1.8
require extra cooling during operation. RAD offers FAN-TRAY, a standalone unit with seven high-capacity fans that provide additional ventilation to the LRS-24 modem rack.
APPLICATIONS
Order from: Cutter Networks
Local Loop
Central Office
Customer Premises
2304 kbps
Ethernet ASMi-51
Ethernet ASMi-51
LAN
LAN 768 kbps ASMi-51
Public Network
RS-530 ASMi-51
2048 kbps Mux
ASMi-51
Video V.35
ASMi-51
Router
Figure 1. Central Site Application
Ph:727-398-5252/Fax:727-397-9610
www.bestdatasource.com
ASMi-51 2-wire MSDSL Modem with Remote Management SPECIFICATIONS
• The ASMi-51 system configuration is stored in a Flash memory, minimizing system downtime when power is down or when a remote unit is replaced.
• ASMi-51 performs call-out via its control port to report system alarms. The port can be configured to relay all alarms or only the major ones.
• ASMi-51 has comprehensive
diagnostics capabilities that include the following test options: ! V.54 local analog and remote digital loopbacks ! RAD's proprietary channel loopback (local digital loopback), which allows testing the DTE interface without losing synchronization between two modems ! BER testing as per V.52 ! MSDSL statistics collection.
DTE INTERFACE
• Type
LINE INTERFACE • Type Unconditioned dedicated line (twisted pair)
! ! ! !
• Line Coding
!
2B1Q
• Range
See Table 1
!
• Output Level
!
13.5 dBm
• Return Loss
!
More than 15 dB
!
• Standard
RS-530: via 25-pin D-type, female V.35: via 34-pin, female V.35A: via 25-pin, D-type female X.21: via 15-pin, D-type, female V.36/RS-449: via adapter cable converting between the RS-530 connector and a 37-pin, D-type, female connector G.703 E1: via RJ-45 or BNC coax IR-ETH (Ethernet bridge): via RJ-45 or two BNC coax IR-ETH/Q (Ethernet bridge with VLAN support): via RJ-45 IR-IP (IP router): via RJ-45
• Data Rate
Pulse shape in accordance with TS 101 135
N × 64 kbps (n = 1, 2, ..., 32, 36)
• Impedance 135Ω
• Connector ! !
8-pin RJ-45 (RJ-48C) 3-clip terminal block
• Protection
High-voltage line protection in compliance with ITU K.21
Central Site
Remote Site A V.35
2-wire ASMi-51
Router
LRS-24 V.35
2-wire ASMi-51
Public Network
Order from: Cutter Networks
ASMi-51CQ
ASMi-51CD
Router
V.35
2-wire ASMi-51
V.35
2-wire SNMP Management Station
ASMi-51
2-wire
Router
Router
2-wire
Remote Site B
Ethernet
ASMi-51
ASMi-51
Ethernet
Figure 2. Central Site Application with SNMP Management
Ph:727-398-5252/Fax:727-397-9610
www.bestdatasource.com
ASMi-51 2-wire MSDSL Modem with Remote Management SUPERVISORY PORT • Interface V.24/RS-232 • Type DCE/DTE • Format 7 or 8 bits; odd, even or no parity • Data Rate 9.6, 19.2, 38.4 or 57.6 kbps • Connector 9-pin, D-type female GENERAL • Timing Derived from the following sources: ! Internal oscillator ! External, from the attached DTE ! Receive, derived from the received signal ! System clock for the card versions of ASMi-51 • Diagnostics Loopbacks: ! Local analog loopback in compliance with ITU V.54 ! Remote digital loopback in compliance with ITU V.54 ! Channel loopback, RAD's proprietary local digital loopback BERT: Built-in pattern generator and tester in compliance with ITU V.52 Performance monitoring: MSDSL statistics collection • Indicators PWR (green) – Power RTS (yellow) – Request to Send DCD (yellow) – Data Carrier Detect TD (yellow) – Transmit Data RD (yellow) – Receive Data ALM (red) – Alarm TST (red) – Test SYNC (green/red) – Sync Status
• Physical ASMi-51: Height: 44 mm Width: 215 mm Depth: 243 mm Weight 1.0 kg
/ / / /
ASMi-51CQ/& Quad-modem card version for LRS-24 modem rack
1.75 in 8.5 in 9.5 in 3.5 lb
& Specify DTE interface: 530 for RS-530 interface V35 for V.35 interface X21 for X.21 interface V36 for V.36/RS-449 interface
ASMi-51CQ/ASMi-51CD: Fit a single slot of the LRS-24 modem rack
• Power
AC source: 100 to 240 VAC (±10%), 50 to 60 Hz DC source: 24 VDC (18 to 36 VDC), ±10% -48 VDC (-36 to -72 VDC), ±10%
• Power Consumption
•
ASMi-51: 6.0W ASMi-51CD: 8.5W ASMi-51CQ: 10.2W Environment Temperature: 0–50°C/32–122°F Humidity: Up to 90%, non-condensing
ORDERING
ASMi-51CD/$ Dual-modem card version for LRS-24 modem rack $ Specify DTE interface: UTP for IR-ETH module UTP/Q for IR-ETH/Q module IP for IR-IP module FAN-TRAY/@/^ Fan tray for LRS-24 modem rack @ Specify chassis type: F for ETSI-compatible unit B for ANSI-compatible unit ^ Specify power supply: AC for 100 to 240 VAC 48 for -48 VDC
ASMi-51/*/# 2-wire MSDSL modem with remote management * Specify power supply: AC for 100 to 240 VAC 24 for 24 VDC 48 for -48 VDC # Specify DTE interface: 530 for RS-530 interface V35 for V.35 interface V35A for V.35A interface X21 for X.21 interface V36 for V.36/RS-449 interface E1 for G.703 E1 interface UTP for IR-ETH module with RJ-45 connector BNC for IR-ETH module with BNC connector UTP/Q for IR-ETH/Q module IP for IR-IP module
644-100-11/01 1989–2001 RAD Data Communications Ltd. All other trademarks are the property of their respective holders. Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
Specifications are subject to change without prior notice. www.bestdatasource.com
