ADTRAN 1200305L1 system manual RS-232 Connector Pinout

Section 2, Engineering Guidelines				ATLAS 550 System Manual
		Table 20. RS-449/V.36 Connector Pinout (Continued)
PIN	SIGNAL DESCRIPTION		PIN	SIGNAL DESCRIPTION
12	DTE Ready (A)		30	DTE Ready (B)
13	Carrier Detect (A)		31	Carrier Detect (B)
14	Remote Loopback *		32	Select Standby *
15	Ring Indicator		33	Signal Quality *
16	Select Frequency *		34	New Signal *
17	Ext. Transmit Clock (A)		35	Ext. Transmit Clock (B)
18	Test Mode *		36	Standby/Indicator *
			37	Send Common *
* Ignored by Dual USSI Module
Connector type		RS-232
System part number		4200754L4
		Table 21. RS-232 Connector Pinout
PIN	SIGNAL DESCRIPTION		PIN	SIGNAL DESCRIPTION
1	Shield (Ground)		14	Sec. Transmit Data
2	Transmit Data		15	DCE Transmit Clock
3	Received Data		16	Sec. Received Data
4	Request to Send		17	Receive Signal Element Timing
5	Clear to Send		18	Not used
6	Data Set Ready		19	Sec. Request to Send
7	Signal Ground		20	Data Terminal Ready
8	Received Line Signal Detector		21	Signal Quality Detector *
9	+ Voltage *		22	Ring Indicator
10	- Voltage *		23	Data Signal Rate Selector *
11	Not used		24	DTE Transmit Clock
12	Sec. Received LIne Signal Indicator		25	Not used
13	Sec. Clear to Send

* Ignored by Dual USSI Module

40 © 2002 ADTRAN, Inc. 61200305L1-1F