Honeywell 51401551-200 Board Card
Description
Manufacture | Honeywell |
Model | 51401551-200 |
Ordering information | 51401551-200 |
Catalog | FTA |
Description | Honeywell 51401551-200 Board Card |
Origin | USA |
HS Code | 3595861133822 |
Dimension | 3.2cm*10.7cm*13cm |
Weight | 0.3kg |
Details
B.2 RESTRICTIONS TO TOTAL REPLACEMENT If you are contemplating the replacement of all HPK2 and EMPU processors in Five/TenSlot Modules, be aware that the Clock Source/Repeater board is the single point ground connection for the LCN cable shield. Therefore, even if the 12.5 kHz (Subchannel) clock function is not being used, a CS/R or other grounding means is still required on each coax segment. Dual Node Modules can be connected to provide that single point ground without requiring a CS/R. See Dual Node Module Service in this binder. If there are no Dual Node Modules on the coax segment to provide that ground, then total replacement can only be accomplished by replacing two Five-Slot Modules with two Dual Node Modules. B.3 PREREQUISITES The system must be up and running on Software Release 320 or later before performing the processor replacement. You must have an LCN I/O card of revision T or later (either in the module or in spares). If the card in your module is an LCNFL, it (or one in spares) must be a revision F (or later). B.4 NODE APPLICABILITY Check that the K2LCN replacement is applicable to the intended node: 1. Visually confirm that there is NOT a Clock Source/Repeater (CS/R) board in the rear of the module. If there is a CS/R board and if it is necessary to replace the processor board in this node, replace it with the same type processor board. Obtain the same type processor board from the spare parts supply or from another node in the network. If you remove a processor from another node, replace it with a K2LCN per this procedure. Be sure, however, that the memory and other requirements of this procedure are met. 2. Check to be sure the processor to be replaced is not an HMPU (the HMPU cannot be replaced by a K2LCN). 3. For performance compatibility, processor board types in redundant node pairs should not be mixed. If you must replace a processor board and the affected node is one of a redundant pair, a K2LCN processor board must be installed in its partner also. See subsection B.6 below. B.5 MEMORY SIZE Determine the amount of memory in the node, including all memory boards and any memory on the processor board to be replaced. The replacement K2LCN must have at least this much memory. Having more memory is not a problem. Because the K2LCN board is available with different memory sizes, ensure you are installing the right size by comparing the tab portion (last three digits) of the part number on your board with the following table: 51401551-200 = 2 megawords 51401551-400 = 4 megawords 51401551-300 = 3 megawords 51401551-600 = 6 megawords