Version 6.2 21 February 2011
Installation Manual 2. Installing the Device
2.4.2.2 T1 WAN DSU/CSU Cabling
The procedure below describes how to connect to the WAN through a dual T1 line interface
(according to ANSI T1.403-1999). The dual T1 WAN DSU/CSU port interface transmits and
receives data using IP over Point-to-Point Protocol (PPP), IP over High-Level Data Link
Control (HDLC), or IP over Multilink Point-to-Point Protocol (MLP) framing.
Warning: To protect against electrical shock and fire, use a 26 AWG min wire to
connect the T1 WAN port.
¾ To connect the dual T1 WAN DSU/CSU port to one or two T1 lines:
1. Connect the supplied splitter cable (RCBA50002 - cable adapter E1/T1 RJ-45 male to
two RJ-45 female shielded) to the device’s T1 WAN port (labeled T1).
Figure 2-9: Connecting the T1 WAN DSU/CSU Port
2. Connect the other two ends of the splitter cable to one or two T1 lines, as desired.
The RJ-48c T1 WAN port connector pinouts are shown in the figure below:
Figure 2-10: RJ-48c T1 WAN Connector Pinouts
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