ATLAS 550 System Manual Section 2, Engineering Guidelines
61200305L1-1F © 2002 ADTRAN, Inc. 39
Connector type EIA-530A
System part number 4200754L2
Table 19. EIA-530A 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 Ring Indicator
11 Ext. Transmit Clock (B) 23 Signal Ground
12 Transmit Clock (B) 24 Ext. Transmit Clock (A)
25 Test Mode *
* Ignored by Dual USSI Module
Connector type RS-449/V.36
System part number 4200754L1
Table 20. RS-449/V.36 Connector Pinout
PIN SIGNAL DESCRIPTION PIN SIGNAL DESCRIPTION
1 Shield (Ground) 19 Signal Ground
2 Signaling Rate Indicator * 20 Receive Common *
3 Not Used 21 Not Used
4 Transmit Data (A) 22 Transmit Data (B)
5 Transmit Clock (A) 23 Transmit Clock (B)
6 Received Data (A) 24 Receive Data (B)
7 Request to Send (A) 25 Request to Send (B)
8 Receive Clock (A) 26 Receive Clock (B)
9 Clear to Send (A) 27 Clear to Send (B)
10 Local Loopback * 28 Terminal in Service *
11 DCE Ready (A) 29 DCE Ready (B)
* Ignored by Dual USSI Module