3015

3015 is a HDLC + autoload controller.

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Introduction

HDLC Controller

CHARACTERISTICS

Single-line serial interface for ND-100/110.

Synchronous transmission format.

HDLC (High-level Data Link Control) frame format handled in hardware.

Direct Memory Access (DMA) transfer of data.

Switch-selectable line connection:

• V.24/V.28 for synchronous modem connection.
• X.21/X.27 for X-DCE (datanet) connection.
• Special computer link connection.
• V.36/V.11 for 64 Kbit/s communication.
• Optional V.35 for wideband modem connection.
• Speed up to 307 kbps in computer link configuration.

APPLICATIONS

COSMOS network.

NORD-NET via synchronous modem or computer link.

Datanet (X.21/X.25) connection.

TEST PROGRAMS

NORD-CONFIGURATION-INVESTIGATOR: Tests device number and identcode.

HDLC/MEGALINK: Tests the HDLC interface both off-line and on-line (see Testprogram Guide).

XMSG-HDLC-TEST: Tests the HDLC interface on-line.

Switches and indicators

The card has three thumbwheel switches numbered 3,2,1 from the top of the card. In addition it has switches at positions 13A, 17G and 26G.

• Thumbwheel 1 - baud rate
  • 0 - 307 K baud
  • 3 - 1.2 K baud
  • 6 - 9.6 K baud
  • 7 - 38.4 K baud
  • 8 - 153.6 K baud
  • 9 - 76.8 K baud
  • 11 - 19.2 K baud
  • 13 - 4.8 K baud
  • 14 - 2.4 K baud
• Thumbwheel 2 - autoload device number
  • 0 - device 1600 - not allowed
  • 1 - device 1604
  • 2 - device 1610
  • 3 - device 1614
  • 4 - device 1620
  • 5 - device 1624
  • 6 - device 1630
  • 7 - device 1634

positions 8 - 15 is not allowed.

• Thumbwheel 3 - HDLC device number
  • 0 - HDLC 1 - device 1640 - ident 150
  • 1 - HDLC 2 - device 1660 - ident 151
  • 2 - HDLC 3 - device 1700 - ident 152
  • 3 - HDLC 4 - device 1720 - ident 153
  • 4 - HDLC 5 - device 1740 - ident 154
  • 5 - HDLC 6 - device 1760 - ident 155
  • 6 - HASP 1 - device 560 - ident 156
  • 7 - HASP 2 - device 620 - ident 157
  • 9 - HASP 3 - device 700 - ident 160
  • 9 - HASP 4 - device 720 - ident 161
  • 10 - HASP 5 - device 1500 - ident 162
  • 11 - HASP 6 - device 1520 - ident 163

Switches are read 4321, switch on = 1, switch off = 0

• 13A switch -
  • xx00 - X.21
  • xx01 - Computer link
  • xx10 - V.35
  • xx11 - V.24 / X.21 bis
• 17G switch -
  • ---0 - disable MCL
  • --0- - disable LOAD
  • -0-- - disable RML
  • 0--- - disable CLOAD
• 26G switch -
  • xx0x - disable Abaud rate osc.
  • x0xx - disable main clock

Connectors

The A and B connectors are used for I/O, the C connector is used for the ND-100 Bus.

I/O Devices on the card

none?

ECO

ECO or Engineering Change Order is a hardware change. Here is a list of known ECO's for this card.

• ECO 100-753E - System corruption if many DMA-controllers and ND-110 (3095 print) or ND-120 as CPU

Reference

• Norsk Data Document ND–06.015.02 ND-100 FUNCTIONAL DESCRIPTION
• Norsk Data Document ND–30.008.3 EN ND-100 Hardware Maintenance