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Product CN-8342B - CodeNet-3000-Compatible Passive 16-Bit ISA NIC with ST/SMA Connectors


    The CodeNet-8340B and 8342B are Passive Fiber Optic Ethernet Adapters for the Industry Standard Architecture (ISA) bus. These adapters operate in either 8-bit or 16-bit ISA slots or in any EISA slot. The board design allows the adapter to map its on-board RAM directly into the host systemís main memory (shared memory mode), or to use a Base I/O address for network adapter data transfer (NE2000+mode).
    The CodeNet-8340B/8342B ISA adapter provides a high performance, fiber optic link to an Ethernet network segment. The CodeNet PC/AT adapters are used in a high performance, high security, easy to maintain and install 10 Mbps Ethernet passive fiber optic segment. Workstation can be up to 1600 meters apart using low-cost CodeStar passive hub.
    CodeNet fiber optic Ethernet networks can be added to, and combined with existing copper cable based networks, thus allowing Ethernet networks to be expanded and converted to fiber optics anytime.


Connects an IBM PC XT, AT, PS/2-25,30 and compatibles to a CodeNet fiber optic Ethernet LAN.
Dual-ported 16-Kbyte shared memory or Base I/O board access for exceptional performance No DMA channels required.
Software support for popular network operating systems including, Novell NetWare 386, Microsoft LAN Manager (NDIS), Windows for Workgroup, Windows NT, Novellís UnixWare, Solaris 86, IBM OS/2, SCO and Banyan Vines.
Operates in either 8-bit or 16-bit ISA slots or in any EISA slot.
Meets all applicable Ethernet and IEEE 802.3 signaling standards. 10 Mpbs, CSMA/CD.
Computers can be up to 1600 meters apart.
Multiple LED indicators for network troubleshooting.
Fiber Break function detects fiber breakage; enhances data integrity, when used with CodeStar passive hubs.
Switch selectable "Jabber" function protects system against unnecessary downtime.
SQE "Heartbeat" test may be defeated via switch selection, allowing unit to be used with IEEE-802.3 electronic repeaters.


Hardware Compatibility:

IBM PC, XT, AT, PS/2 (non Micro Channel bus), EISA bus or other compatibles.


16-bit / 8-bit


CSMA/CD Ethernet, 10 Mbps baseband FCC Class B EN55022 VFG 243


Duplex fiber optic cable with bayonet type ST connectors; Optical screw-on SMA connectors also available.

LAN Software:

NetWare Server 286, 386, (3.11, 3.12, 4.0) NetWare IPX, DOS ODI; OS/2 Client and Server 2.01 & 3.0 (LAN Manager/IBM LAN Server and Banyan Vines client); DEC Pathworks for DOS, Release 4.x (NDIS) Release 3.x (DLL driver) FTP Packet Driver (PDS); PC-NFS; SNMP Agent for ODI and NDIS; SCO Unix/ Open Desktop; Solaris 2.x; UnixWare; Vines Server (SCO); Wollogong TCP, OSI, FTP.

Card Compatibility:

Shared memory; Novell NE2000 Plus.


16 Kb RAM for increased performance Transmit and Receive FIFO Ring. I/O Base Address: Seven (240, 280, 2C0, 300, 320, 340, or 360) in software selectable increments. Interrupt channel: IRQ 2/9, 3, 4, 5, 10, 11, 12, and 15. ROM size: 32 Kbytes. ROM Base Address: C0000 through DC000(hex). Transceiver Transmitter: CodeLED high radiance edgemitting Aluminum Gallium Arsenide Light Emitting Diode (LED). Receiver: Silicon PIN-type Photodiode Optical Wavelength: 830 nm +/-20 nm peak. Cable: 50/125, 62.5/125, 85/125 100/140 duplex, multimode, graded index. RAM Base Address: A0000 and FE000 (hex)


Board Size: 9.9 cm (3.9 in) x 21.8 cm (8.6 in) Plugs into an expansion slot in any IBM PC, EISA bus, PC XT, AT, or non Micro Channel PS/2, or their compatibles. Operating Environment: 0 to 55 C, 10 to 90% humidity, non-condensing. Power: 1.0A @ + 5V, 0.3A @ + 12V, typical.

Optical Specifications:

CodeNet 8342B
Peak Power Output Info:
62.5 µm core fiber -3.5dBm
100 µm core fiber -3 dBm
50 µm core fiber -6.5 dBm

Receiver: Sensitivity:
Optical Flux Budget Info:
62.5 µm core fiber 26.5 dB
100 µm core fiber 27 dB
50 µm core fiber 23 dB

Dynamic Range: 15 dB
Maximum Cable Length: 800m *2

*1 Typ. peak power measured at 25C, 50% duty cycle.
*2 Limited by IEEE 802.3 round trip delay time, flux budget permitting.

Diagnostic Indicators:

Transmit (TX) - Green
Collision (COL) - Yellow
Receive (RX) - Green
Low Light (LL) - Yellow
Jabber (JAB) - Yellow
High Light (HL) - Yellow

8300 | 8302 | 8310 | 8312 | 8340B | 8342B | 8370 | 8380 | 8382 | 8380P | Passive

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