User Manual

Section 3, Engineering Guidelines TRACER 4205 System Manual
26 © 2002 ADTRAN, Inc. 612804205L1-1A
4. REVIEWING THE TRACER 4205 REAR PANEL DESIGN
The TRACER 4205 rear panel contains the following interfaces:
•
ALARM interface (terminal block) for connecting to an external alarm monitoring system
•
DC POWER (terminal block) for connecting to a proper 21-63 VDC power source
•
DS3 IN and OUT (BNC interfaces) for connecting to a DS3 device
• Antenna (N-Type connector) for the antenna feedline cable
• Ground lug for connecting to earth ground
•
RS-232 (DB-25 female) for connecting to a VT100 terminal or PC with terminal emulation
software
Figure 2 on page 27 identifies the various features of the TRACER 4205 rear panel. A detailed discussion
of all interfaces (including pinouts, where applicable) follows the figure.
AIS Red (solid) the TRACER 4205 received a remote alarm from a connected
DS3 device (properly aligned and framed alternating one-zero
pattern).
LOF Red (solid) the TRACER 4205 DS3 framer has lost alignment (due to
receiving too many F or M bits in error).
LOS Red (solid) the TRACER 4205 does not detect a DS3 from the connected
DS3 device signal (indicated by receiving 192 consecutive
zeros).
BPV Red (solid) the TRACER 4205 detects Bipolar Violations on the received
signal from the connected DS3 device (receiving two
consecutive “one” bits with the same polarity).
LBK Amber (solid) the TRACER 4205 is currently in DS3 line loopback.
Amber (flashing) the TRACER 4205 is currently in DS3 link loopback.
Table 2. TRACER 4205 LEDs (Continued)
For these LEDs... This color light... Indicates that...