Technical Documentation

X.21 DCE Cable Pinouts for the Serial Mini-Physical Interface Module

Table 1 gives the X.21 DCE cable pinouts.

Table 1: X.21 DCE Cable Pinouts for the Serial Mini-PIM

LFH-60 Pin	DB-15 Pin	LFH-60 Pairing	Description
15	1	-	Shield Ground
1	2	2	Transmit Data (A)
37	3	38	Control (A)
60	4	59	Receive (A)
48	5	47	Indicate (A)
52	6	51	Signal Element Timing (A)
57	8	-	Signal Ground
2	9	1	Transmit Data (B)
38	10	37	Control (B)
59	11	60	Receive (B)
47	12	48	Indicate (B)
51	13	52	Signal Element Timing (B)
30 to 29	-	-	-