User`s manual
Example:
The X100 is an 8-channel D/I board designed for the 7188X(D) /
7521(D). It removes all 5 resistors, R19 ~ R23, and reconfigures all
these pins as D/I pins. It installs another 5-pin female reconfiguration-
jumper into TP1 of the 7188XC(D)/7521(D). Therefore, user can select
the original 3_DO_2_DI functions or new 5_DI functions by setting the
jumper in different positions.
The I-7188XB(D), I-7188XG(D), I-7188EX(D), I-7188EG(D) has 14
user-defined pins. But the I-7188XB(D), I-7188XG(D), I-7188EX(D),I-
7188EG(D) & I-7188XA(D) don’t support the reconfiguration-resistor.
So the user-defined pins of the 7188X / 7521 family are given as
follows:
Module User defined pins Reconfiguration pins Customized I/O pins
7188XA (D) 0 0
0+0=0
7188XB (D) 14 0
14+0=14
7188XC (D) 3 5
3+5=8
7188XG (D) 14 0
14+0=14
7188EX (D) 14 0
14+0=14
7188EG (D) 14 0
14+0=14
7521 (D) 3 5
3+5=8
7522 / 23 / 24 / 27 (D) 0 0
0+0=0
Note:The 7188XA(D) supports I/O expansion bus but does not support
user defined pins, so the 7188XA only supports X002, X003, X560,
X600, X601, X607, X608.
I/O Expansion Bus for 7188X/7188E User’s Manual, Jun/2004 v1.4, 7PH-000-14---10










