TRICONEX 4320 Channel output module

The standard address match field is always active. An installed jumper indicates a logic "zero" address. Some jumpers must be left open (no jumper) depending on the board memory options. The Active fields are as follows: *1 Meg: (A23 through A20) A19 and A18 must be left open (Both Pass Through and Address Field)Jumper fields which must be left open due to memory options specified are left unpopulated on the PCB, i.e., for 512 Kbyte SRAM option, A18 is not used for Standard Address decode and thus, it must be left open. In the 1 Mbyte version, both A18 and A19 address jumpers must be left open.

Board Node ID Field (J9) 

The Board Node ID field identifies each board on the Memory link. No ID may be used more than once on the link. All nodes on the link should be sequentially numbered starting with 0. Jumper field J9, provides a double hexidecimal digit defining the board node ID. An installed jumper sets the corresponding bit to 0. There is no relation between node number and physical position on the link. Nodes may be physically located in any order.The Reflective Memory Board may operate in one of three modes, supervisory data access, nonprivileged data access, or both.

Fast Field (J5)  

If the J5 jumper is left off the fiber-optic link rate is 6.2 Mbytes. If the jumper is present, the link rate is 3.2 Mbytes. The 3.2 Mbytes rate results from transmitting every data word twice. If an error is detected in the first transmission, it is thrown away and the second transmission of data is used. If the first transmission is okay, the second is ignored.data error is detected. The CSR can be read to determine if the INT0 was set by the transmitter becoming half-full or by a transfer error. If the mask jumper is removed then no interrupt is generated. In redundant transfer mode, the user does not care if a transfer error occurs on a single transfer since the second transfer statistically is certain to be received correctly. The CSR bit 3 is always set if a single transfer error is detected regardless of the state of the mask jumper.

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