ADTRAN 1200305L1 system manual System part number, EIA-530 Connector Pinout

Section 2, Engineering Guidelines						ATLAS 550 System Manual
			Table 17. DB-78 Connector Pinout (Continued)
PIN		SIGNAL DESCRIPTION		PIN		SIGNAL DESCRIPTION
39			RTS-B 1	76		RXC-A 1
40			RTS-A 2	77		RXD-B 1
				78		RXD-A 1
Note: 1 or 2 indicates the port on the USSI Module
Connector type			EIA-530
System part number			4200754L2
			Table 18. EIA-530 Connector Pinout
PIN		SIGNAL DESCRIPTION		PIN		SIGNAL DESCRIPTION
1	Shield (Ground)			13	Clear to Send (B)
2	Transmit Data (A)			14	Transmit Data (B)
3	Received Data (A)			15	Transmit Clock (A)
4	Request to Send (A)			16	Received Data (B)
5	Clear to Send (A)			17	Receive Clock (A)
6	DCE Ready (A)			18	Local Loopback *
7	Signal Ground			19	Request to Send (B)
8	Carrier Detect (A)			20	DTE Ready (A)
9	Received Clock (B)			21	Remote Loopback *
10	Carrier Detect (B)			22	DCE Ready (B)
11	Ext. Transmit Clock (B)			23	DTE Ready (B)
12	Transmit Clock (B)			24	Ext. Transmit Clock (A)
				25	Test Mode *

* Ignored by Dual USSI Module

38 © 2002 ADTRAN, Inc. 61200305L1-1F