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FOXBORO FBM225 Channel output card

Multiple MVME167s may be configured into a single VME card cage. In general, hardware multiprocessor features are supported. GCSR Location Monitor Register Other MPUs on the VMEbus can interrupt, disable, communicate with and determine the operational status of the CISC processor(s). One register of the GCSR set includes four bits which function as location monitors to allow one MVME167 processor to broadcast a signal to other MVME167 processors, if any. All eight of the GSCR registers are accessible from any local processor as well as from the VMEbus.

Ethernet LAN (+12 Vdc) Fuse

The MVME167 provides +12 Vdc power to the Ethernet LAN transceiver interface through a 1-amp fuse (F2) located on the MVME167. The +12V LED lights when +12 Vdc is available. The fuse is socketed and is located adjacent to diode CR1 near connector P1. If the Ethernet transceiver fails to operate, check the fuse. When using the MVME712M transition module, the yellow LED (DS1) on the MVME712M front panel lights when LAN power is available, indicating that the fuse is good. Note Your MVME167 may have a poly-switch instead of a 1- amp fuse. If the Ethernet transceiver fails to operate and the poly-switch is open, power off the chassis and wait a while before re-applying power.

SCSI Bus Termination

❏ The MVME167 provides SCSI terminator power through a 1- amp fuse (F1) located on the P2 adapter board. The fuse is socketed. If the fuse is blown, the SCSI devices may not operate or may function erratically. ❏ When the P2 adapter board is used with an MVME712M and the SCSI bus is connected to the MVME712M, the green LED (DS2) on the MVME712M front panel lights when there is SCSI terminator power. If the LED flickers during SCSI bus operation, the fuse should be checked.

❏ Because this board has no provision for SCSI termination, you must ensure that the SCSI bus is terminated properly. If you use a P2 adapter, the adapter has sockets (R1, R2, R3) for terminating the SCSI lines using three 8-pin SIP resistor networks.

product application

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, mechanical, electronic manufacturing, automobile manufacturing, plastic machinery, electric power, water conservancy, water treatment/environmental protection, boiler heating, energy, power transmission and distribution and so on

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