MiRICi-E1T1

MiRICi-E1T1
Data Sheet
MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge
• E1/T1 connectivity to any Ethernet device with SFP MSA-compatible socket
• Full duplex, E1/T1 wire-speed packet forwarding
• GFP, RAD HDLC and cHDLC encapsulation
• VLAN support according to 802.1p, including VLAN stacking (Q-in-Q) capabilities,
allowing traffic separation and prioritization
• Fault propagation to LAN link
• Inband and out-of-band management for configuration, monitoring and diagnostics
• I2C management interface for simple management integration with host devices
Connecting Fast or
Gigabit Ethernet LANs
MiRICi-E1T1 forwards Fast or Gigabit
Ethernet packets to a TDM-based WAN at
full duplex wire-speed, fully utilizing the
expensive E1 or T1 TDM bandwidth.
automatically requests one from the DHCP
server upon booting.
The TDM interface type (E1 or T1) is
user-configurable.
Application software can be downloaded
to MIRICi-E1/T1 via the central server,
using TFTP.
The unit supports the following frame
sizes, including VLAN-tagged frames:
•
64–2016 bytes for Fast Ethernet
•
64–10000 bytes for Gigabit Ethernet.
over framed E1 or
LAN traffic is transparently directed, thus
preserving the user LAN settings.
framed/unframed T1
All parameters are software-configurable
including transmit timing sources and data
formats.
links
MANAGEMENT
The unit can be monitored, configured,
and tested using the following ports and
applications:
•
Out-of-band via the I2C channel (off
the SFP edge connector)
•
Inband via the Ethernet port using a
Web browser.
To facilitate integration of a new device
into an IP network, if no IP address has
been manually configured, MiRICi-E1T1
MiRICi-E1T1 sends SNMP traps for up to
eight management stations.
LOS AND FAULT PROPAGATION
The LAN link is deactivated and the link
status LED turns off if one of the
following user defined alarms is issued
and fault propagation is enabled:
•
LOS (Loss of signal)
•
FDL (Facility Data Link)
•
LOF (Loss of Frame)
•
AIS (Alarm indication signal)
•
RDI (Remote defect indication).
In addition, the above-listed error
conditions are propagated towards the
host by sending an electrical signal via the
LOS pin on the MSA edge connector. The
LOS LED turns ON, visually indicating the
LOS condition.
MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge
ENCAPSULATION
MiRICi-E1T1 employs the GFP, RAD HDLC
and cHDLC WAN encapsulation protocols.
FLOW CONTROL
A flow control mechanism is activated
when LAN traffic exceeds the WAN link
(E1, T1) capacity and the watermarks of
the internal frame buffer. Pause packets
are transmitted to the LAN port, halting
LAN traffic until the buffer is emptied to
below the watermark limit.
QUALITY OF SERVICE (QoS)
MiRICi-E1T1 facilitates differentiated
services on the same link according to
Ethernet or IP marking. Classification is
based on VLAN (802.1p) or Differentiated
Services Code Point (DSCP) priority, while
classification results are mapped to
transmit priority queues. Priority queues
can be defined to be Strict Priority or
Weighted Round Robin (WRR).
DIAGNOSTICS AND LOOP DETECTION
Remote (RLB) and local loopbacks (LLB)
are used for physical layer
troubleshooting.
MiRICi-E1T1 detects loops on the LAN side
or WAN side by transmitting special loop
detection frames.
If a loop is detected on the LAN side, a
loop detection alarm is sent.
If a loop is detected on the WAN side, the
unit blocks the traffic, and only then a
loop detection alarm is sent.
The unit also performs Bit Error Rate
(BERT) diagnostic tests. MiRICi-E1T1
generates and detects pseudo-random
patterns and repetitive patterns from 1 to
32 bits in length.
ETHERNET OAM
MiRICi-E1T1 provides single segment (link)
OAM based on 802.3ah, including
discovery, continuity check, and remote
fault indication.
CLOCK OPTIONS
MiRICi-E1T1 uses Tx clock sources for the
internal and receive clocks. Standard
statistics for 15 minute time intervals are
collected.
FLEXIBILITY
MiRICi-E1T1 operates opposite the
following devices using GFP, RAD HDLC
and cHDLC encapsulation:
•
•
•
RAD’s Egate-20, Egate-100 (central
Ethernet gateway)
RAD’s RICi-16, RICi-E1 and RICi-T1
Third-party devices that support GFP,
RAD HDLC and cHDLC encapsulation.
SFP ENCLOSURE
Housed in a Small Form Factor Pluggable
(SFP) package, MiRICi-E1T1 complies with
the Multi-Source Agreement (MSA).
Running on power derived from the host
device, it requires no additional power
supply.
MiRICi-E1T1 is hot swappable and features
a special release mechanism for easy
extraction from the SFP socket.
SFP CONFIGURATION ADAPTER
An optional configuration adapter module,
SFP-CA, is available for configuring
MiRICi-E1T1 by connecting it to a PC via a
USB port.
The configuration adapter is used for
preliminary configuration, such as
assigning an IP address for first use or
specifying the operation mode. It is also
used to download software to the
MiRICi-E1T1 units.
POSSIBLE APPLICATIONS
MiRICi-E1T1 can be used in the following
application:
•
•
•
Transparent LAN services over leased
lines
Remote branch connectivity over E1/T1
lines
Connecting LANs over E1/T1 radio links
or in campus applications.
Figure 1. Providing Transparent LAN Services over Leased Lines
Data Sheet
T1 INTERFACE
WAN PROTOCOL
WAN INTERFACE
Number of Ports
1
Number of Ports
1, configurable as E1 or T1
Compliance
G.703, G.775, G.823, T1.107, T1.403
Encapsulation
GFP (G.8040, G.7041/Y.1303)
RAD HDLC
cHDLC
Tx Clock
Receive or internal clock
Data Rate
1.544 Mbps
Connector
RJ-45
Line Code
B8ZS, AMI
E1 INTERFACE
Framing
Framed (ESF, D4), unframed
Specifications
Number of Ports
1
Line Impedance
100Ω, balanced
Compliance
G.703, G.704, G.775, G.823
Cable Length (max)
Up to 1829m (6000 ft) for AWG 22 cable
Data Rate
2.048 Mbps
LAN INTERFACE
Line Code
HDB3, AMI
Type
Fast or Gigabit Ethernet port
Framing
Framed (G.732.N, G.732.N CRC), unframed
Compliance
IEEE 802.3
Line Impedance
120Ω, balanced
Edge Connector
SFP-based, MSA-compliant
Cable Length (max)
Up to 2500m (8202 ft) for AWG 22 cable
Frame Size
FE: 64–2016 Bytes
GE: Up to 10 kBytes (jumbo)
Figure 2. Physical Dimensions
GENERAL
LED Indicators
MiRICi-E1T1/FE: LINK (green)
– Ethernet link status
MiRICi-E1T1/GbE: LINK/ACT (green)
– Ethernet link status and activity
LOS (red) – E1/T1 loss of signal
Power
3.3V
Power Dissipation
1.25W
Environment
Temperature:
MiRICi-E1T1/FE:
Ambient: –40 to 70°C (–40 to 150°F)
Case: –40 to 78°C (–40 to 172°F)
MiRICi-E1T1/GE:
Ambient: –40 to 70°C (–40 to 150°F)
Case: –40 to 78°C (–40 to 172°F)
Humidity: Up to 90%, non–condensing
Physical Dimensions
Height: 12.4 mm (0.49 in)
Width: 14 mm (0.55 in)
Depth: 74.1 mm (2.92 in)
Weight: 15.0 g (0.5 oz)
Figure 3. SFP-CA Module
Data Sheet
MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge
MiRICi-E1T1/+
Legend
+
SFP port:
FE
Fast Ethernet
GE
Gigabit Ethernet
OPTIONAL ACCESSORIES
SFP-CA
Configuration adapter for connecting
MiRICi-E1T1 to a PC
Table 1. MiRICi Family Product Comparison
MiRICi-E3/T3
(Ver. 2.5)
MiRICi-E1/T1
(Ver. 2.5)
Protocol type
GFP (G.8040, G.7041/Y.1303)
RAD HDLC
cHDLC
GFP (G.8040, G.7041/Y.1303)
RAD HDLC
cHDLC
Framing
G.832, G.751, unframed(E3)
C-bit, M23, unframed (T3)
G.732.N, G.732.N CRC, unframed(E1)
ESF, D4, unframed (T1)
QoS
VLAN priority (802.1p, strict priority, WRR)
VLAN priority (802.1p, strict priority, WRR)
Loop detection
Yes (LAN or WAN)
Yes (LAN or WAN)
Fault propagation
Yes (LOS, LOF, FEAC, RLOL, AIS, RDI)
Yes (LOS, FDL, LOF, AIS, RDI)
SNMP traps
Yes, up to 8 management stations
Yes, up to 8 management stations
Feature
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
North America Headquarters
900 Corporate Drive
Mahwah, NJ 07430, USA
Tel. 201-5291100
Toll free 1-800-4447234
Fax 201-5295777
E-mail market@rad.com
Order this publication by Catalog No. 803789
513-101-01/11 (2.51) Specifications are subject to change without prior notice.  2007–2011 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.
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