ADTRAN 1200305L1 Octal E&M Option Module (P/N 1200313L1)

ATLAS 550 System Manual Section 2, Engineering Guidelines
61200305L1-1F © 2002 ADTRAN, Inc. 41
Octal E&M Option Module (P/N 1200313L1)
Each port of the Octal E&M Option Module has a single 8-pin modular jack. A suitable mating connector
is AMP # 2-383021-5. The Octal E&M module is an E-lead originate signaling circuit suitable for connec-
tion to an M-lead originate trunk circuit. The pinout is shown in Table 23, and the E&M signaling types are
shown in Table 24.
Connector type CCITT X.21/V.11
System part number 4200754L3
Table 22. CCITT X.21/V.11 Connector Pinout
PIN SIGNAL DESCRIPTION PIN SIGNAL DESCRIPTION
1 Shield (Ground) 8 Signal Ground
2 Transmit Data (A) 9 Transmit Data (B)
3 Request to Send (A) 10 Request to Send (B)
4 Received Data (A) 11 Received Data (B)
5 Carrier Detect (A) 12 Carrier Detect (B)
6 Transmit/Receive Clock (A) 13 Transmit/Received Clock (B)
7 Ext. Transmit Clock (A) 14 Ext. Transmit Clock (B)
15 Not Used
Table 23. E&M Pinout
PIN Signal DESCRIPTION
1 Ring VF input (4W mode, 600Ω nominal)
Tip/Ring (2W mode, 600Ω + 2.1 6uF nominal)
2Tip
3 E Customer Originate
4 SG Signal Ground
5 SB Signal Battery
6 M Network Originate
7Tip 1
VF output (4W mode, 600Ω nominal)
8 Ring 1