RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
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4.1 Internal <strong>Switch</strong>es<br />
This chapter provides information on the following:<br />
• Internal switches, indicators, and connections<br />
• How to service the switch with the power on<br />
• Troubleshooting<br />
4Chapter 4.<br />
MAINTENANCE<br />
Note: Under normal conditions, this switch does not require periodic or preventive<br />
maintenance. Most problems, if any, will arise during the initial installation. These<br />
problems will most often be due to improper cabling, waveguide wiring, or indicator<br />
positions.<br />
The switch does not have any external switches or controls. The internal switches<br />
(shown in Figure 4-1) are not normally used by the operator. However, if the switch must<br />
be opened, descriptions of the four push-button switches are provided in the following<br />
table.<br />
<strong>Switch</strong> Description<br />
UL AUTO/MAN Depress to alternate between Uplink Auto and Manual.<br />
UL A/B ONLINE Depress to alternate between A and B uplink online.<br />
DL AUTO/MAN Depress to alternate between downlink Auto and Manual.<br />
DL A/B ONLINE Depress to alternate between A and B downlink online.<br />
Rev. 8 4–1
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