WOODWARD 5466-419 Output expansion module

Terminal Connection The two EIA-232-D ports at the front-panel 9-pin female connectors J3 and J4 are configured for DCE (to terminal) operation only. Two 9-pin EIA-232-D cables may be connected to J3 and J4, with the other ends connected to compatible terminals. These cables are not provided with the MVME188A module, and must be made or provided by the user. (Motorola recommends using shielded cables for all connections to peripherals to minimize RFI radiation.) Detailed information on the signals supported is found in Appendix A.The user may change J3 and/or J4 to a DTE (to modem) configuration by providing a "nullmodem" cable that switches certain signals, by connecting to the MVME714M Transition Module, and by reprogramming U89, the 68692 DUART on the MVME188A system controller board.

Two suggested cabling arrangements are shown.

 Suggestion 1 is Figure 2-5. Two 9-pin flat-ribbon cable male connectors are used to connect to J3 and J4. These flat-ribbon cables are, then, crimped to two flat-cable female DB-25 (or DB-9) connectors for two EIA-232-D ports connected per Table 2-4. Suggestion 2 is Figure 2-6. Here, a single flat-ribbon cable is, instead, connected to both EIA-232-D ports at the rear connector P2 on the MVME188A system controller board, and the other end of this cable has a 64-pin 3M female connector that mates with both the 10-pin male EIA-232-D ports on the MVME714M Transition Module. Refer to Table 2-4. Pin 1 on the cables must align with pin 1 on the connectors. 

The MVME714M must be installed in the VME chassis

 (according to the instructions in the MVME714, MVME714M, and MVME714M-1 2-Channel Serial 110 Distribution Modules User's Manual), and secured in place with screws at the top and bottom of its front panel. It is double height but approximately half the depth of a standard VMEmodule, and therefore does not connect into the backplane of the VME chassis. The peripherals are then connected to the EIA-232-D DB-25 ports on the MVME714M module. Each EIA232-D port is defined to interface directly with a standard EIA-232-D connector.

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