Manufacturer “RBM Digitaltechnik”
7 expansions in database
Manufacturer RBM Digitaltechnik, Germany | Date 1998 | Amiga A2000, A3000, A4000
| Interface Zorro II
| Autoconfig ID 4711 / 1
|
serial and parallel interface
- ST16C654 interface chip
- four serial ports with up to 460800 bps transfer speed (9 pin)
- one 500 kB/s buffered EPP/ECP uni/bidirectional parallel port (25 pin)
- 64 byte FIFO buffer for the serial ports
- 16 byte FIFO buffer for the parallel port(s)
- can be upgraded up to 8 kB FIFO memory which can be related to each module
- modular interface
- optional second parallel port (ST78C36 chip + cable)
- optional Ethernet module
- planned modules: AHI sound card, IDE ports, two-way infrared controller (IrDA)
- driver for parallel ZIP drives and scanners (ioblixepp.device)
- up to five IOBlix cards are supported in one Amiga
- the IOBlix end plate is blank, reserved for connectors of the planned optional modules
- all the serial and parallel ports are on separate plates
optional Ethernet interface
- 10Base2 and 10BaseT connectors (some revisions lack the 10Base2 connector)
- automatic detection of the used connector
- full duplex
- SANA 2 driver
- requires IOBlix firmware 2.0
front side
back side
Ethernet module, front side
Ethernet module, back side
front side
back side
Manufacturer RBM Digitaltechnik, Germany | Date 1999 | Amiga A1200
| Interface clock port
| Autoconfig ID 4711 / 3
|
parallel interface
- connects to the clock port
- ST78C36 EPP/ECP driver chip
- 2 Mbps transfer speed
- driver for parallel ZIP drive
- planned driver for parallel scanners
Manufacturer RBM Digitaltechnik, Germany | Date 1999 | Amiga A1200
| Interface clock port
| Autoconfig ID 4711 / 2
|
serial interface
- connects to the clock port
- ST16C650 UART chip
- 1.5 Mbps theoretical transfer speed
- ready for IrDA adaptor (infrared serial standard)
- works flawlessly with 1D4 motherboard revision
front side
Zorro busboard interface
- acts as an adaptor between the A1200 motherboard and RBM Zorro busboards
- ONBoard 4000:
- connects to the ONBoard 1200 with two ribbon cables
- 7× Zorro II slots
- 5× ISA slots
- 2× extended video slots
- the video slots can be optionally activated by the VidiON module
- Eyetech single Zorro slot:
- connects directly onto the ONBoard 1200
- 1× Zorro II slot
- battery backed up clock
- connects to the trapdoor slot - the connector is passed through for accelerator cards
- the board is part of the RBM Towerhawk 1200 tower system
front side
back side
with Eyetech single Zorro adapter, front side
with Eyetech single Zorro adapter, front side
with Eyetech single Zorro adapter, front side
Eyetech single Zorro adapter, back side
Zorro busboard
- 5× Zorro II slots
- does not support DMA - many SCSI cards are ruled out
- does not comply with the Zorro II specifications:
- /XRDY (External Ready - used for adding wait states) is halfways implemented
- /OVR (/DTACK Override - used for delaying Zorro bus cycle termination) is not implemented at all
- as a side effect it is possible to achieve 2-cycle Zorro accesses - faster than other Zorro boards if the card can take advantage of it
- optional extended video slot - VidiON ex module
- a Zorro III upgrade with A4000 style CPU slot (TurboON 32) was planned but never realised
- connects to the trapdoor slot - the connector is passed through for accelerator cards
- the board is part of the RBM Towerhawk 1200 IIex tower system
Zorro III busboard
- 7× Zorro III slots
- 2× extended video slots
- 5× ISA slots
- the video and ISA slots are all inline with a Zorro slot
- only the first four Zorro slots are DMA capable
- designed only as a double sided PCB, not as a multi layer one (with dedicated ground and power layers) as requested in the Zorro III specifications
- replaces the original A4000 daughterboard
- the board is part of the Towerhawk 4000 tower system
front side
clock port splitter
- provides four clockport connectors
- connects to the A1200's internal clock port with a ribbon cable
front side