Unisys NX5820 manual Guidelines for Configuring Channel Racks, Area Rule/Recommendation

					Configuring Channel Racks
	Table 4–4. Guidelines for Configuring Channel Racks
Area			Rule/Recommendation
3U configurations		Consists of four bays with four 3U channel slots each:
			3U Bay		3U Bay
			(3rd)		(4th)
			3U Bay		3U Bay
			(1st)		(2nd)
					A22
		Vertically adjacent bays can be electrically and logically configured so that one CS-
		bus can service two bays with up to eight channels. The following configurations
		are possible:
		• Four CS-buses servicing four bays of four channels each
		• One CS-bus servicing eight channels in vertically adjacent bays and two CS-
		buses servicing two bays of four channels each
		• Two CS-buses servicing two sets of vertically adjacent bays of eight channels
		each
		See Table 5–3 for channel loading.
Mixed 3U/6U		Consists of adjacent 3U bays converted to 6U use:
configurations
			3U Bay		3U Bay
			(2nd)		(3rd)
				6U Bay
				(1st)
					A23
		In the configuration shown, two 3U paths service the two upper bays and one 6U
		path services the lower bay. The 3U-to-6U conversion can be in either the upper or
		lower bays, or both. The following configurations are possible:
		• Two CS-buses servicing two bays of four 3U channels each and one CS-bus
		servicing one converted bay of four 6U channels
		• Two CS-buses servicing two bays of four 6U channels each
		See Table 5–3 for channel loading.
Channel loading		Each CS-bus can handle up to eight channel loads. The above configurations may
		be limited to fewer channels than indicated, depending on the channel loading. See
		"Assigning Channel Loads" in Section 5.
Filler boards		Unused 6U locations must contain a filler board. The RM5-6UF option provides one
		6U filler board for this purpose and included with CSB3-E6U option.

7017 6300–005 4–5