3512 - 3512/SDC DSU/CSU

Transmits sync/async from 2.4K to 56K Data rates to 56K available on all ports Operates as a limited distance modem on private wire Full user and Telco local and remote loopback tests Network-managed (NMS) & non-managed versions EIA-232 and V.35 interfaces Optional SW56 Optional 4 channel A/B restoral port supports external restoral via 2- or 4-wire switched 56, ISDN or analog modem. Ports 1 thru 4 individually configurable for V.35 or EIA 232 Optional integral V.32bis SLR option to 14.4K; leased line monitoring supported while under-restoral.

3512-SDC DSU/CSU

All features of 3512 plus SDC (Sync Data Compression)

Perfect for compressing bit-synchronous protocols

These units are out of production
but we have used and refurbished

To Order

• 48388	3512 Base 2.4-64K S/A
  48389	3512 Base 2.4-64K Card
  48390	3512 NMS 2.4-64K S/A
  48391	3512 NMS 2.4-64K Card
  49207	3512 S/A to nest card conversion kit
  48015	3512 -Mini nest 110vac
  49205	3512 -Mini Nest -48VDC
  49206	3512 -Mini Nest-48VDC Redundant
  49210	3512 NMS SDC 9.6-64K Card
  49211	3512 NMS SDC 9.6-64K Card
  *48392	3512 4 Ch. TDM PP/MP Option
  *48395	3512 V.32bis SLR Dial Backup Option
  *48396	3512 SW56 Dial Backup Option
  *48397	3512 2 Ch TDM PP/MP Option

  *Options Must Be Ordered With Base & NMS Products

3512 manual PDF files

these are PDF 5.0 files -  you may need the newest version of Acrobat

• Table of Contents  and  Chapter 1, 2 and 3
  Chap 1, Introduction - Describes modem functions and features;
  Chap 2, Installation - Contains instructions for mechanical and 
  electrical installation of the modem;
  Chap 3, Option Selection - Describes both 
  hard strap and front panel display options;
• Chapter 4, 5, 6, 7, 8, 9 - Appendix E, F,  and Index
  Chap 4, Operation - Describes standard control and indicator 
  functions, dialing procedures, and secure operation;
  Asynchronous Operating Commands - 
  Describes commands and displays;
  Chap 6, Status Registers - Describes status registers;
  Chap 7, V.25 bis Auto-dialer - Defines operation 
  and commands for the V.25 bis auto-dialer;
  Chap 8, Protocols - Describes MNP 
  error control and flow control protocols;
  Chap 9, Maintenance - Provides information 
  for maintaining the modem;
  Appendix A, B, C, and D
  A. Modem Specifications;
  B. Phone Jack Descriptions;
  C. Fault Isolation Procedure;
  D. Command Index and Defaults;