Alpha XM 6015 Series Operations Instructions download pdf (Page 33)

6.5 Connecting the SPI (Service Power Inserter)

Procedure: (Refer to SPI drawing located at the back of the manual)

1. Prepare the incoming coaxial cable.

2. Remove the two screws from the Service Power Inserter and lift off the cover.

3. Loosen the seizure screw on the PCB, (located inside the SPI), to accommodate the

center pin of the cable connector.

4. Screw the connector into the output port located on the rear of the PWE or UPE/M (or

lower compartment of the PME or UPE) enclosure. Make sure the center pin slides

through the seizure screw assembly. Heat shrink the external connection.

5. Tighten the seizure screw on the SPI so that the center pin on the cable connector is

firmly clamped. If a connection is left loose, arcing could result and possible damage

to the connector or SPI could occur.

6. Replace the cover on the SPI. NOTE: Make sure that the screws securing the SPI's

internal PCB to its chassis are tight; otherwise, loss of power, arcing, or possible

damage can occur. During routine maintenance, the seizure screw assembly can be

accessed through the grommeted hole without removing the SPI’s cover.

7. Once the module has been installed in the enclosure, the SPI connects to the AC

OUTPUT connector #5 (White) and #6 (Black) on the XM side panel (See section 6.6).

8. Make sure that the "ALT/ON" switch, located on the Service Power Inserter, is in the

"ON" position. When the switch is in the "ALT" position, the input is transferred to the

SPI's "Jones" connector which is used with an alternative power source such as the

Alpha APP60S Service Power Supply during module maintenance or replacement.

6. INSTALLATION

Black and White connectors

plug into 5 and 6 on XM module

"Jones" Connector

Grommeted Hole

(seizure screw access)

"ALT/ON" Switch

SPI Service Power Inserter

(shown in PWE enclosure)

Coax Cable

(to power supply output connector)

PME Enclosure PWE Enclosure

SPI

(inside enclosure)

SPI

(inside enclosure)

Cable Connection to SPI

Power Supply Output Connector

(heatshrink connection)

Power Supply Output Connector

(heatshrink connection)

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Alpha XM 6015 Series Operations Instructions Page 33

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