Metallic Loop Test Ports; Alarm Port; Figure 3-10 Metallic Loop Test Ports; Figure 3-11 Alarm Port - Hatteras HN4000 Hardware Installation Manual

3-10

Metallic Loop Test Ports

3.8 Metallic Loop Test Ports
The HN4000 provides external test access via two RJ‐45 jacks labeled "IN" and "OUT"
(Figure 3‐10). You can use the CLI's config mlt command to configure 2BASE‐TL ports for MLT
testing and the show mlt command to display the results of a loopback test.

Figure 3-10 Metallic Loop Test Ports

3.9

Alarm Port

The HN4000 Alarm I/O port (Figure
alarms that the device generates, as well as supporting an input for external alarms. Alarms
generated by the HN4000 are available on the Alarm port's normally‐open and nor‐
mally‐closed relay contacts.

Figure 3-11 Alarm Port

HN4000 Hardware Installation Guide
3‐11) is an RJ‐45 connector that provides an interface for
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