TM 1–1520–238–T–3 1–6 5.   The hexadecimal number to bit relationship is provided for ease of conversion. HEXADECIMAL NUMBERS BITS 0 0000 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 A 1010 B 1011 C 1100 D 1101 E 1110 F 1111 6.   ASCII conversion is interpreting more than four bits using hexadecimal conversion. The appropriate system chapters provide an ASCII code table for character conversion. ASCII conversion is used when ASCII appears after MEMORY DATA BIT(S) in the respective paragraph. EXAMPLE: 17–5    SIGNAL NAME: DEK DATA MEMORY LOCATION:    000444 MEMORY DATA BIT(S): 12–19 (ASCII) CONDITION: Refer to Table 17–1 for ASCII code conversions. SIGNAL FUNCTION: Provides DEK characters in 8-bit ASCII word format to FCC. REMARKS:   From DEK through CPG MRTU Type III to FCC. PASS: If ASCII conversion corresponds to the key pressed on DEK, go to paragraph 17–6. FAIL:    Location of fault: DEK, wiring from DEK to CPG MRTU Type III, CPG MRTU Type III. Troubleshoot wiring to isolate fault (TM 9–1230–476–20–2). 7.   To convert a hexadecimal, transform the required octal to into binary and then change to hexadecimal. 8.   The ASCII result of 35 from Table 17–1 is a 5. TABLE  17–1. ASCII CODE CONVERSIONS (BITS 12–19) 41 = A 49 = I 51 = Q 59 = Y 30 = 0 38 = 8 42 = B 4A = J 52 = R 5A = X 31 = 1 39 = 9 43 = C 4B = K 53 = S 20 = SP 32 = 2 06 = EN 44 = D 4C = L 54 = T 28 = ( 33 = 3 08 = BK 45 = E 4D = M 55 = U 29 = ) 34 = 4 0D = CR 46 = F 4E = N 56 = V 2A = * 35 = 5 7F = CL 47 = G 4F = O 57 = W 2B = + 36 = 6 48 = H 50 = P 58 = X 2D = – 37 = 7