Description
Comarra offers its Ethernet to DS3 converters
(Ethernet over DS3 Converters) packaged in a 19-inch 1U (44mm) high
rack-mountable chassis.
Comarra Ethernet to DS3
converters (Ethernet over DS3 Converters) provides a 100BaseT data interface
on the user side which may be used to transport Ethernet traffic over a DS3
link. The converter provides a simple and cost effective method to convert
and transport 100BaseT ethernet data over a DS3 link.
Comarra offers its Ethernet to
DS3 converters (Ethernet over DS3 Converter) packaged in a 19-inch
rack-mountable chassis. Comarra Ethernet to DS3 converters (Ethernet over
DS3 Converter) provides a 100BaseT data interface which may be used to
transport Ethernet traffic over a DS3 link. The converter provides a simple
and cost effective method to convert and transport 100BaseT ethernet data to
a DS3 stream. The converter may be accessed by the user for configuration
and monitoring through a Windows based GUI that is shipped with the system.
It may be also accessed remotely over a TCP-IP network.
Features and Highlights
- G.703 DS3 /T3 45 Mbps to Ethernet interface converter.
- 100BaseT full duplex fast Ethernet in accordance with
IEEE802.34, RJ-45.
- Provides framed and un-framed DS3 option.
- Stratum 3 Clock.
- Local &Remote access and monitoring with either RS232
or 10/100BaseT for remote management over TCP-IP network.
- Power Supply: -48 VDC or AC power supply options
available.
Applications
- 100 BaseT Ethernet
to DS3 Conversion (100BaseT over a DS3 interface)
- Remote LAN applications
- Remote LAN over Wireless
DS3 application
Indications and Alarm
Monitoring
- DS3 Loss of Signal
- Loss of incoming signal at 100 BaseT Ethernet
- Configuration Error Alarm
- Clock Status
- +3 Volts Power Supply
- -48VDC present
- Configuration Error
Programmable Features
- Telnet interface for remote programming by
using CLI text commands.
- Easy to use programming using Windows based GUI.
Status Monitoring
- Status of alarms on DS3 interface
- Status of alarms on 100BaseT interface.
Ethernet Interface
| Interface Types |
100BaseT |
| Standards
Compliance |
IEEE 802.3-2002
RFC1662
RFC2615
X.86
RMII |
| Interface Rate |
100BaseT limited to DS3
transmission rate |
| Protocol |
User Programmable HDLC and
LAPS mapping |
DS3 Interface
| Bit Rate |
44.736 Mbps |
| Bit Rate Tolerance |
± 20ppm |
| Line Code |
B3ZS |
| Framing |
*Meets ANSI T1.404
*M13 or C-bit parity |
| Pulse Shape |
Meets ANSI T1.102-1993 and
Bellcore GR-499-CORE |
| Connectors |
BNC, Co-axial
Un-balanced |
| Impedance |
75 Ohms |
Application Diagram:
Technical Specifications
|
DC Adapter
Power Supply Specifications (DC Option) |
|
Power
Supply |
-48VDC
(-40VDC to -60VDC) |
| Input DC voltage |
-48V DC ( nominal ) |
|
Range of
input |
-40V to
-60V DC |
| Output voltages |
+3.3V |
|
Full
Load Output Current |
2A at
+3.3V |
| Input Voltage Reversal
Protection |
Provided in the Card |
|
Over
Current Protection |
2A for
+3.3V |
| Short Circuit Protection |
Current limit - 3A. Recovers on removal
of short |
|
Under
Voltage |
< 3.17V |
| Over Voltage |
3.5V |
|
Efficiency at full load |
>90% |
| Ripple at full load |
<5mVrms |
|
Spike at
full load |
<50mV |
|
| |
|
AC Adapter Power Supply Specifications
(AC Option) |
|
Input AC voltage |
100 - 240 Volt AC |
| Range of Input
Voltage |
100 V To 240 V
AC |
|
Output voltages |
7.5 VDC to 9.0 V DC |
| Maximum Full
Load Output Current |
2.5 A at
7.5 VDC / 9.0 V DC |
|
Input Voltage Reversal Protection |
Provided in the Card |
| Efficiency at
full load |
>86% |
|
Chassis
1U High
19-inch rack-mounting
shelf.
Power Supply
|
Power
Supply |
-48VDC
(-40VDC to -60VDC) (Optional)* |
| Power Supply |
AC Input (Optional)* |
* Please specify the Power Supply Option
(AC or DC) which is required before placing the order.
Please see ordering information in this data sheet for details. |
Power Consumption
Power Consumption: 12 Watts
100BaseT Interface
|
Number
of Interfaces |
One |
| Interface Types |
100BaseT |
|
Standards Compliance |
IEEE
802.3-2002
RFC1662
RFC2615
X.86
RMII |
|
Interface
Rate |
100BaseT limited to DS3
transmission rate |
|
Protocol |
User
Programmable HDLC
And LAPS mapping |
| Connectors |
RJ45 (100 BaseT
Electrical) |
DS3 (T3) Interface
|
Number
of DS3 Interfaces |
1 |
| Bit Rate |
44.736 Mbps |
|
Bit Rate
Tolerance |
±
20ppm |
| Line Code |
B3ZS |
|
Framing |
* Meets
ANSI T1.404
* M13 or C-bit parity |
|
Pulse Shape |
Meets ANSI T1.102-1993 and
Bellcore GR-499-CORE |
|
Connectors |
BNC,
Co-axial Un-balanced |
| Impedance |
75 Ohms |
|
Signal
Level to declare Loss of Signal condition |
≤
20mV |
| Signal Level to clear Loss
of Signal condition |
≥ 90mV |
Clock
Clock:
Internal |
AT&T
TR62411, Telcordia GR-1244-CORE, Stratum 3, Stratum 4, Enhanced and
Stratum 4, ETSI ETS 300 011, ITU-T G.813 Option 1 |
|
Loop-Timed |
Timed from DS3 Interface. |
|
External |
75 Ohms
- 1.544 Mhz (TTL Levels) |
Management and
Control
Serial Management Port - RS232 interface (RJ-11 connector)
10/100 BaseT for Remote Management over a LAN.
10/100 BaseT Telnet over a TCP-IP Network.
Command Language
Command Line Interface (english text commands)
Windows based GUI (optional).
NMS (with Telnet) Xport Specifications
|
Network Interface |
RJ-45
Ethernet 10BaseT or 100BaseT-TX (auto sensing) |
|
Compatibility |
Ethernet Version 2.0
IEEE802.3 |
|
Protocols Supported |
ARP, UDP
/ IP, TCP / IP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, Auto IP, SMTP
and HTTP |
|
LEDs |
10Base-T &
100Base-TX Activity, Full / half duplex. |
|
Management |
Internal
web server, SNMP (read only), Serial login, Telnet login |
|
EMI
Compliance |
- Radiated &
conducted emissions - complies with Class B limits of EN55022:1998
- Direct & Indirect ESD - complies with EN55024:1998
- RF Electromagnetic Field Immunity - complies with En55024:1998
- Electrical Fast Transient / Burst Immunity - complies with
EN55024:1998
- Power Frequency Magnetic Field Immunity - complies with
EN55024:1998
- RF Common Mode Conducted Susceptibility - complies with
EN55024:1998
|
Ordering Information
|
VCL-DS3 to Ethernet
Converter |
|
S. No. |
Part # |
Product
Description |
Qty |
|
1. |
VCL-DS3-ETH-DC |
DS3 to
Ethernet Converter with -48VDC Input |
1 |
|
2. |
VCL-DS3-ETH-AC |
DS3 to
Ethernet Converter with AC Power Input |
1 |
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Multiplexers
Technical specifications are subject to change without
notice.
All brand names and trademarks are the property of their respective owners. |
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