ADTRAN TRACER 6000 SERIES, Руководство пользователя

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Section 3 Engineering Guidelines TRACER 6000 Series Split System Manual
38 Copyright © 2005 ADTRAN, Inc. 612806320L1-1B
4xE1 Module with 75
Ω
Interface
The 4xE1 network module provides four E1 interfaces (through a single DB-25 interface) that provide the
following functions:
• AMI or HDB3 coding
• Framed, multi-framed, and unframed framing support
• Network performance monitoring and reporting
• Test loopbacks (both line and link)
Table 12 provides the DB-25 interface pinout for the 4xE1 network module. A separate breakout panel is
available to provide 75
Ω
BNC unbalanced interfaces (see Table 13 on page 39 for the pinout of the 75
Ω
cable). Figure 4 displays the E1 breakout panel.
Table 12. 4xE1 Module DB-25 Connector Pinout
Pin Name Description
1 E1D RX Receive signal for E1 D interface
2 E1D TX Output signal for E1 D interface
3 GND Ground
4 E1C RX Receive signal for E1 C interface
5 E1C TX Output signal for E1 C interface
6 GND Ground
7 E1B RX Receive signal for E1 B interface
8 E1B TX Output signal for E1 B interface
9 GND Ground
10 E1A RX Receive signal for E1 A interface
11 E1A TX Output signal for E1 A interface
12-25 GND Ground