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11. EXTERNAL CONNECTIONS
The MPA-100 is designed to meet the RS-232 standard through a D-25 connector. The
MPA-100 uses a D-25 short body male connector (labeled CN1) for both the DTE and DCE
configurations. Jumper blocks J2, J11, and J12 configure the connector pin out. Table 18 and
Table 19 display the pin out definitions for both configurations while Figure 6 and Figure 7
illustrate the pin-outs for each of the configurations. The definitions of the interchange circuits
according to the RS-232-D standard can be found in Section 12.
Table 18 DTE Connector Pin Definitions
D7 of COMM REGXTEST MODE25
TRXCA on SCCXTXCLK (DTE)24
---N/C23
---N/C22
D4 of COMM REGXRL21
DTR/REQA on SCCXDTR20
---N/C19
D5 of COMM REGXLL18
TRXCA on SCCXRXCLK (DCE)17
---N/C16
TRXCB on SCCXTXCLK (DCE) 15
---N/C14
---N/C13
---N/C12
N/AN/AN/ARXCLK (DTE)11
---N/C10
---N/C9
DCDA on SCCXCD8
---DGND7
DCDB on SCCXDSR6
CTSA on SCCXCTS5
RTSA on SCCXRTS4
RXDA on SCCXRXD3
TXDA on SCCXTXD2
---CGND1
SOURCEGENERATEDRECEIVEDSIGNALPIN
MPA-100 User's Manual 11-1