Patton electronic 3088RC user manual B.3 E1 INTERFACE, B.4 X.21 INTERFACE, Pin #, Signal

B.3 E1 INTERFACE

RJ-48C female connector

Pin #	Signal
1	Receive (Ring)
2	Receive (Tip)
3	Shield
4	Transmit (Ring)
5	Transmit (Tip)
6	Shield
7	No connection
8	No connection

B.4 X.21 INTERFACE

D-sub-15 female connector (DTE/DCE orientation)

Pin #	Signal
1	Frame Ground
2	T - Transmit Data-A (DTE Source)
3	C - Control-A (DTE Source)
4	R - Receive Data-A (DCE Source)
5	I - Indication-A (DCE Source)
6	S - Signal Element Timing-A (DCE Source)
7	BT - Byte Timing-A (DCE Source)
8	SGND - Signal Ground
9	T/ - Transmit Data-B (DTE Source)
10	C/ - Control-B (DTE Source)
11	R/ - Receive Data-B (DCE Source)
12	I/ Indication-B (DCE Source)
13	S/ Signal Element Timing-B (DCE Source)
14	BT/ - Byte Timing-B (DCE Source)

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