ADTRAN 1200305L1 BRI DBU Network Module (P/N 1200327L1), 6. OPTION MODULE INTERFACES Octal/Quad FXS Option Module (P/N 1200309L1/1200328L1)

ATLAS 550 System Manual Section 2, Engineering Guidelines
61200305L1-1F © 2002 ADTRAN, Inc. 35
BRI DBU Network Module (P/N 1200327L1)
The BRI DBU Network Module provides a single 8-pin jack to connect to a standard BRI U-interface cir-
cuit. All BONDing functionality for 2B+D operation is provided on the module. Table 13 shows the pinout
for this connection.
6. OPTION MODULE INTERFACES
Octal/Quad FXS Option Module (P/N 1200309L1/1200328L1)
Each port of the Octal/Quad FXS Option Module has a single 8-pin modular jack. Connector pinout is
compatible with (USOC) RJ-11C and is shown in Table 14.
Connector Type (USOC) RJ-49C
Table 13. BRI Pinout
PIN NAME DESCRIPTION
1, 2, 3, 6, 7, 8 Unused —
4 Ring Ring to and from the Network Interface
5 Tip Tip to and from the Network Interface
Connector Type (USOC) RJ-11C
Table 14. FXS 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