Tyco 4100U Continued on next page, 2-12, Card Interconnections in the CPU Bay Card

Step 4. Interconnecting Modules and Bays, Continued

Card

Interconnections in

the CPU Bay

Card

Interconnections

Within Expansion

Bays

Basic Bay-To-Bay Interconnections

Use the following directions to connect the CPU to the SPS and other motherboards.

1.Connect P3 on the SPS to P1 on the CPU motherboard using the 8 wire harness with eight-position Molex minifit connector (provided).

2.Make sure the 10 way, right angle header, connector P3 on the CPU is secured to J1 on the next motherboard to the left. Repeat this for the third (leftmost) motherboard, and on if applicable.

The power distribution interface (PDI) mounted to the back of each expansion cabinet carries 24V Card power and data to each 4”x 5” card.

Refer to “Step 7: Installing Modules into Expansion Bays (4100U)” for instructions on mounting 4”x 5” cards to the PDI. Also bear in mind the following variations:

•In a remote expansion cabinet, a transponder interface card (TIC) requires additional interconnections. This occurs in MINIPLEX systems. Refer to Chapter 3.

•Regular motherboards require non-PDI interconnections to each other and to the CPU. Refer to “Step 5: Installing Modules into Expansion Bays (4100U).”

The 4 wire harness 734-008 is used to carry 24V Card power and coms from bay to bay. Connector P1 on the PDI receives power from the previous PDI or from P6 on the SPS (or alternatively from P7, P8 on the CPU Motherboard). P2 on the PDI is used to carry power and coms to a 64/64 Controller. P3 is used to carry power and coms to the next PDI.

Jumpers P4 and P5 on the PDI are set to positions 2-3 (right) to provide card power to the bay only if an XPS is fitted to the PDI. Jumpers P4 and P5 are set to positions 1-2 (left) to provide card power to the bay from P1 on the PDI.

Note: Interconnections can become more involved if 4100 motherboards are used. Refer to “Step 5: Installing Modules into Expansion Bays (4100U)” if this is the case.

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