ADTRAN 1200305L1 system manual FXO Pinout, Winchester Pinout

Section 2, Engineering Guidelines ATLAS 550 System Manual

Octal/Quad FXO Option Module (P/N 1200310L1/1200329L1)

Each port of the Octal/Quad FXO Option Module has a single 8-pin modular jack. Connector pinout is compatible with (USOC) RJ-11C and is shown in Table 15.

Connector Type	(USOC) RJ-11C
		Table 15. FXO Pinout
PIN		NAME	DESCRIPTION
1, 2, 3, 6, 7, 8		Unused	—
4		Ring	Ring to and from the analog phone interface
5		Tip	Tip to and from the analog phone interface

Dual Nx 56/64 Option Module (P/N 1200311L1)

Each port of the Dual Nx 56/64 Option Module has a V.35 Winchester-style connection as defined in Table 16.

		Table 16. V.35 Winchester Pinout
Pin	CCITT	DESCRIPTION
A	101	Protective ground (PG)
B	102	Signal ground (SG)
C	105	Request to send (RTS) from DTE
D	106	Clear to send (CTS) to DTE
E	107	Data set ready (DSR) to DTE
F	109	Received line signal detector (DCD) to DTE
H	—	Data terminal ready (DTR) from DTE
J	—	Ring indicator (RI)
R	104	Received data (RD-A) to DTE
T	104	Received data (RD-B) to DTE
V	115	RX clock (RC-A) to DTE
X	115	RX clock (RC-B) to DTE
P	103	Transmitted data (TD-A) from DTE
S	103	Transmitted data (TD-B) from DTE
Y	114	TX clock (TC-A) to DTE
AA	114	TX clock (TC-B) to DTE

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