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Adtran
Enterprise Network Series
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Disaster Recovery
Dedicated Circuits
Featuring DSUs, TSUs & ISUs
Any business can experience temporary network downtime as a result of
unexpected events such as fire, flood or simple technician error. For recovery
from such a disaster on a dedicated wide area network, ADTRAN provides a variety
of solutions.
Point-to-Point Application
As illustrated in the diagram, the DSU IV ESP (56/64 kbps DSU/CSU) or the TSU
ESP (FT1/T1 DSU/CSU) connects LAN traffic from Site 1 to Site 2. If a problem
develops in the primary circuit, the DSU will sense a failure, and automatically
initiate a call using the dial back-up card. These products support backup via
ISDN, Switched 56, or analog (DSU IV ESP only) circuits.
Integrated Access Application
For customers with multiple data services (such as video and LAN traffic) on a
single T1, avoiding downtime is critical. In this diagram, the company uses an
ADTRAN TSU 600e multiplexer with an Nx56/64 dial backup card and a TSU 120e
multiplexer with built in dial backup functionality to protect the network. If
the primary line is lost, the units initiate dial backup through an ISU 512e,
which BONDs up to four BRI lines to achieve a backup bandwidth of 512 kbps.
SOLUTION FEATURES
- Reliable, cost-effective dial backup solution
- Rates from 56k to T1
- Field-upgradable
- Modular platform
- Provided by the industry DSU leader
- Solutions for any size network
DSU IV ESP (1204011L1)
- Supports rates of 2.4 kbps to 57.6 kbps
- Embedded SNMP via SLIP port
- Optional switched backup
TSU ESP (1200169L1)
- Single port T1/FT1 DSU/CSU
- Embedded SNMP via SLIP port
- Optional switched backup
TSU 600e (1202076L1)
- Modular T1/FT1 DSU/CSU with 6 option slots
- Embedded SNMP via SLIP and 10BaseT
TSU 120e (1202129L1)
- Modular T1/FT1 DSU/CSU with one option slot
- Integral V.35 DTE and DSX-1 ports
- V.35 DTE port with built in dial backup
- Embedded SNMP via SLIP and 10BaseT
ISU 512e (1203086L1)
- Terminates 4 BRI lines
- Supports BONDing and MLPPP
- Embedded SNMP via 10BaseT
DSU IV ESP
- Backup options:
4-wire SW56 (P/N 1204001L1)
V.34 (P/N 1204002L1)
1 B+D ISDN (P/N 1204004L1)
- 10BaseT optional Ethernet card for SNMP (P/N 1204005L1)
TSU ESP
- Backup options:
4-wire SW56 (P/N 1204001L1)
2 B+D ISDN (P/N 1204004L1)
EXT DBU (P/N 1204006L1)
- 10BaseT optional Ethernet card for SNMP (P/N 1204005L1)
TSU 600e
- Nx56/64 DBU module for data and dial backup (P/N 1200158L1#HS)
TSU 120e
- Need cable for DBU (P/N 1200196L1)
ISU 512e
ADTRAN is a registered trademark of ADTRAN, Inc.
TSU, TSU IQ, TSU IQ+ and DSU IQ are trademarks of ADTRAN, Inc. |
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Tel: 972-234-4343 Fax: 972-234-4295
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