1.4.1.5 - Norsk Data hardware - ND-100

Description

• Floppy interface + 4 terminal lines.
• RS-232 or Current Loop.
• Special version for NEC CCIS.
• Using 1 piece of SRAM chip, 1024 x 4 bits x 4 piece (total 2 KB).
• Print: N   ECO: U
• PCB size 367 x 280 mm, 4 layers
• Release date 19. May. 1986

Chipset

• 00700C
• 00800A
• 00900B
• 4702 - Programmable Bit Rate Generator
• IM6402 - UART x 4 pieces
• P2114 SRAM x 4 pieces
• CNY17 Optocoupler x 4 pieces

LEDs

• None

Straps

• None

Switches

• TH1 - Baud rate for terminals
• TH2 - Device numbers for terminals
• TH3 - Device number for floppy
• RS232/CL switches 4 pieces, ON = RS232, OFF = Current Loop

Connectors

• (A) Floppy bus
• (B) Terminals
• (C) Standard ND-100 system bus