Features:
General Information
- Marketing Information: The ADTRAN TSU LT is a low cost, full-featured T1/FT1 Data Service/ Channel Service Unit (DSU/CSU). The TSU LT provides an interface between T1 or Fractional T1 service and the end user's Data Terminal Equipment (DTE) for applications such as LAN to LAN bridging, Frame Relay circuit termination and videoconferencing. The TSU LT provides access to traditional dedicated point-to-point T1 services as well as network termination for Frame Relay.

Technical Information
- Communication Type: T1/Fractional T1
- Ports: 1 x 8-pin RJ-48C Network (Physical), 1 x 34-pin V.35 (Mechanical), 2 x RJ-48C Serial, 3 x Bantam (Management)
- Electrical Interface: CCITT V.35
- Data Transfer Rate: 56Kbps to 1.536Mbps (DTE), 1.544Mbps (Network)
- Data Transfer Rate (O.L.D): 1.544Mbps
- Operating Mode: (Point-to-point)
- Data Encoding: AMI/B8ZS
- Input Signal: 0 to -36 dB
- Diagnostics Features: Tests:

- Local:

- Payload/Line Loopback

- DTE Loopback



- Remote:

- Payload/Line Loopback

- V.54 (DTE) Loopback



- Network: CSU and DSU loopbacks

- Test Access jacks for Network T1

Power Description
- Input Voltage: 115V AC
- Frequency: 60Hz
- Power Consumption: 5W (Operating)

Environmental Conditions
- Temperature: 0 to 50°C (Operating), 32 to 122°F (Operating), -20 to 70°C (Storage), -4 to 158°F (Storage)
- Humidity: Up to 95% non-condensing Relative Humidity

Miscellaneous
- Additional Information: - Single V.35 DTE interface for applications such as LAN-to-LAN bridging, Frame Relay circuit termination, and dedicated videoconferencing

- User-programmable with front panel LCD and keypad

- Supports VT100 terminal configuration and remote configuration using control port

- Easy to use front panel keypad or EIA-232 control port for unit configuration and monitoring

- Remote TSU LT configuration via FDL or 8k in-band

- Local and remote loopback capability

- Extensive built in test capabilities

- Network T1 Test Access jacks

- Support for T-Watch PRO software for optional PC based configuration

- IEC standard power connection

- DTE Transmit Clock: Automatic

- Reports: NI information stored for last 24 hours in 15 minute increments

- PRMS: ANSI Performance Report Messages (User selectable)



- Framing:

- SF/ESF

- Auto Detection



- ESF Format:

- AT&T 54016

- ANSI T1.403



- DSO Assignment:

- Contiguous

- Alternating



- T1 Transmit Timing:

- Network Loop Timed

- Internal

- DTE



- Performance Monitor Performance Data:

- BPVs/CRCs

- ES

- SES

- UAS

- % AS

- % EFSEC

- Alarms

- Errors



- Built-In Test Patterns:

- 511 (active DS0s) with error insert available

- 1:8 (all DS0s)

- All 1's (all DS0s)

- All 0's (all DS0s)
- Certifications & Standards: - FCC part 15

- Class A

- FCC Part 68

- Industry Canada CS03

- UL

- CUL

Physical Characteristics
- Form Factor: Rack-mountable, Wall-mountable, Stand-alone
- Dimensions: 1.5" (Height) x 9" (Width) x 6.25" (Depth)
- Weight: 2 lb

Warranty & Support
- Standard Warranty: 5 Years Limited - North America

Options and Accessories:
Services
646996 - MAINTENANCE SITE 3YR NBD DSU DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100303M2
645473 - MAINTENANCE SITE 1YR NBD DSU DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100203M2
645752 - MAINTENANCE SITE 1YR 5X8 4HR DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100204M2
645892 - MAINTENANCE SITE 1YR 24X7 4HR DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100205M2
647236 - MAINTENANCE SITE 3YR 5X8 4HR DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100304M2
646830 - MAINTENANCE 3YR 24X7 4HR DSU DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100302M2
643309 - INSTALL REMOTE SUPPORT ALL CSU/DSU NT1 EXPRESS 3XXX - 1100101L1
643483 - ONSITE INSTALL ALL CSU/DSU NT1 EXPRESS 3XXX - 1100102L1
644949 - MAINTENANCE 1YR 5X8 NBD DSU DSUIII/IV/S2W ISU T1 ESF CSU - 1100201M2
645197 - MAINTENANCE 1YR 24X7 4HR DSU DSUIII/IV/S2W ISU T1 ESF CSU - 1100202M2
646226 - MAINTENANCE 3YR 5X8 NBD DSU DSUIV/III/S2W ISU128/2X64 T1ESF CSU - 1100301M2

Rack Accessories
777233 - 19IN RACKMOUNT SHELF HOUSES 1 STANDALONE HORIZONTALLY - 1200411L1
885283 - 19IN RACKMOUNT SHELF HOUSES 7 STANDALONE UNITS - 1200417L1