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DS3 Failover (DS3 Protection) Switch
Product Overview – DS3
Fail Over (DS3 Protection) Switch - Upto 2 x DS3 Links
 Valiant's DS3 Protection (Fail Over) Switch allows the user to
connect a single DS3 line from the telephone company to an "active", as well as
to a "standby" DS3 terminal, such as data server, router etc. at the customer
premises. In the event of a terminal equipment failure at the customer premises, the DS3
Protection (Fail-Over) Switch automatically "switches" the DS3 line from the
service provider to the standby (working) DS3 terminal.
- Are you looking for Ethernet over DS3 ? Valiant Ethernet
over DS3 Switch (Ethernet to DS3 Switch) provides a four 100BaseT Ethernet and 100Base-FX
optical (optional) ethernet interfaces on the user side which may be used to transport
Ethernet traffic over a DS3 link.
How it works:
In the event of the failure of
the data server / router connected to the "A / active" port of the DS3
Protection (Fail-Over) Switch, the DS3 line from the telephone company shall automatically
be "switched" to the data server / router on the "B / standby" port of
the DS3 Protection (Fail-Over) Switch. This ensures minimum downtime - which would have
otherwise occurred due to equipment failure connected to the "A / active" port.
This equipment may be used to enhance the reliability and the efficiency of the customer's
data network.
Application Note:
The DS3 Fail-Over Switch should
be used when the customer wishes to connect redundant (active and standby) DS3 equipment
(such as Routers) at the customers premises to a single DS3 service line from the
telephone company.
The DS3 Fail-Over Switch will automatically switch the DS3
service line from the telephone company between the ACTIVE DS3 data server / router and
the STANDBY DS3 data server / router. Should and whenever the ACTIVE DS3 data server /
router fail (or be removed from service), the DS3 line from the telephone company
automatically switches to the STANDBY DS3 data server / router without requiring any
customer or user intervention.
The DS3 Fail-Over Switch may also be accessed remotely by
the user to allow forced / manual switching between the two DS3 terminals through user
executable software commands using Telnet. |
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Features:
- Allows the user to connect a DS3 line from the Telephone
Company and to switch it automatically between an active and a standby DS3 terminal at the
customer premises
- LOS (Loss of DS3 Signal) is the switching criterion between
"Active" and "Standby" DS3 Ports
- Fail-Safe switching to Main (Port A) link in to event of
equipment or power failure
- Available in a single DS3 line and a two DS3 line version
- Independent switching for each DS3 line (in the 2, DS3 line
version)
- Built-in real-time clock / real-time logging maintains a
history of all events
- Remotely accessible over a TCP-IP networks. Allows the user
to access and carry out maintenance, or / and switch the DS3 line between the
"active" and "standby" DS3 terminals, remotely, if required
- Dual AC (1+1 AC) or Dual - 48V DC (1+1 DC) power input.
Benefits:
Allows the users to install and maintain active / standby /
duplicate customer premises data networks / data servers, without bearing the recurring $$
expense of leasing additional expensive DS3 lines from the telephone company
Automatically switches the DS3 link from the Telephone
Company between the "active" and "standby" DS3 equipment at the
customer premises, according to the customer-defined criterion
Improves equipment and data security.
Allows the user to co-locate the "backup /
standby" equipment in a different room / building and prevent any data loss arising
out of conditions of natural calamity such as fire, flooding etc
Increases the reliability of the customer's data / IT
networks without having to bear the recurring and additional cost of leasing additional
DS3 lines from the telephone company. The equipment may be used to create secondary /
backup systems at the customer premises to provide virtually uninterrupted service.
DS3 Switching
Parameter:
Loss of DS3
Signal (LOS) |
The Loss of
Signal condition in a DS3 may occur due to:
a) The failure of the DS3 Port of the
customer premises equipment.
b) Or due to loss of power to the customer
premises equipment.
c) Or due to the disconnection of the DS3
cable between the protection Switch and the DS3 Port of the customer premises equipment. |
Applications:
Technical
Specification
DS3 (T3) Interfaces:
| Number of DS3
Interfaces – Telco |
1 (in one DS3 line
version)
2 (in two DS3 line version) |
| Number of DS3
Interfaces – Equipment |
2 (in one DS3 line
version)
4 (in two DS3 line version) |
| Bit rate |
44.736 Mbps |
| Bit rate tolerance |
+/- 20ppm |
| Line code |
B3ZS |
| Framing |
Transparent (M-13
and C-Bit supported) |
| 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 |
| Output voltage of
AC Adapter |
100 - 240 Volt AC |
| Range of input AC
voltage |
100 V to 240 V AC,
50Hz / 60Hz. |
| System Input
voltage |
7.5 V DC to 9.0 V
DC with DC input polarity protection. |
| Power Supply
Rating - Maximum full load output current |
2.5 A at 7.5 V
DC/9.0 V DC |
| Power consumption |
14 watts |
| Input voltage
reversal protection |
Provided in the
Card |
| Efficiency at full
load |
>86% |
| Feed connectors |
Dual Feed - 2 AC
Inputs |
| Power supply |
- 48V DC (-40V DC
to -60V DC) |
| Input voltage
reversal protection |
Provided in the
Card |
| Power supply |
1+1 Protected
Inputs |
| Power consumption |
14 watts |
| Feed connectors |
Dual Feed - 2 DC
Inputs |
| Command Line Interface
(English text commands) |
| Windows XP and Windows 7
compatible GUI |
| Telnet - CLI (Command Line
Interface) |
| SNMP V2 (MIB File provided
with the equipment) |
| Serial
Management Port (RS232) – COM Port |
| USB Serial
Interface – COM Port |
| 10/100 BaseT for remote
management over a LAN |
| 10/100 BaseT Telnet over a
TCP-IP network |
| Network Interface |
RJ-45 Ethernet
10BaseT or 100BaseT-TX (auto sensing), MDI-X. |
| Compatibility |
Ethernet Version
2.0 IEEE802.3 |
| Protocols
Supported |
ARP, UDP/IP,
TCP/IP, Telnet, ICMP, SNMP |
| Management |
SNMP (read only),
Telnet login |
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EMI Compliance |
- Radiated and conducted
emissions - complies with Class B limits of EN55022:1998 - Direct and 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 |
| Synchronized to the network
DS3 clock. |
| 1U High (44 mm.) |
| 19-inch rack-mounting shelf |
| Meets CE emission requirements |
| Complies with FCC Part 68 and
EMC FCC Part 15 Class 2 |
| Operation ETS 300 019 Class
3.2 |
| Storage ETS 300 019 Class 1.2 |
| Transportation ETS 300 019
Class 2.3 |
S. No. |
Product
Description |
Part No. |
1. |
Single DS3
Protection (Fail-Over Switch) 19" Shelf 1U High
Mount Version
110/120 V AC, 50/60 Hz power input |
VCL-DS3-SNG-PRO-1455-AC |
2. |
Single DS3
Protection (Fail-Over Switch) 19" Shelf 1U High Mount Version - 48 V DC power input |
VCL-DS3-SNG-PRO-1455-DC |
3. |
Dual DS3
Protection (Fail-Over Switch) 19" Shelf 1U High Mount Version 110/120 V AC, 50/60 Hz power input |
VCL-DS3-DUAL-PRO-1455-AC |
4. |
Dual DS3
Protection (Fail-Over Switch) 19" Shelf 1U High Mount Version - 48 V DC power input |
VCL-DS3-DUAL-PRO-1455-DC |
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