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Spectracom Corporation
PathAlign-R
2200 / 2240 / 2241 PathAlign-R Manual
2-13
2.6
Mating Connectors
The Band 1 through Band 4 front panel in/out connectors are coaxial type female Super SMA
sparkplug connectors (3.5 mm compatible) with a 50
Ω nominal impedance. The rear panel
’Remote Read-out’ connector is a coaxial type BNC connector (0-2 VDC). The ’External
Charger In’ rear panel connector is a 5.5 mm x 2.1 mm male barrel DC power connector, center
positive.
Replacing the ‘Sparkplug’ thread-in Connector
The Band 1-4 female in/out sparkplug connector is ”field replaceable” if damaged during use.
Tools required
SMA Female ‘Sparkplug’ thread-in connectors, P/N 220-500SF, from Southwest Microwave,
Tempe, AZ 85284 USA
•
Special installation/removal tool for thread-in connectors, P/N T-1020-1, from Southwest
Microwave, Tempe, AZ 85284, USA
•
Two 5/16" (or 8 mm) open-end/box wrenches, to use with the tool above
•
Low-strength removable thread-locking fluid
Thread-locking Fluid:
A low-strength removable thread-locking fluid can be obtained from M.G.
Chemicals, Toronto, Canada, Cat # 8701 (Mouser P/N 590-8701-10ML). A second-source is
Loctite RC/609.
2.6.1 Procedure
Caution must be exercised when removing and replacing the 'sparkplug' connector to ensure
that the center conductor of the internal coax is not bent. The following instructions should be
followed when replacing the sparkplug connector:
2.6.2 Attaching the Installation/Removal Tool
1. Back the short part of the installation/removal tool out from the longer section by hand
until it stops rotating.
2. While holding the tool by the longer section, thread the installation/removal tool onto the
sparkplug connector by hand until it bottoms out.
3. While holding the tool by the longer section, back the connector out ½ turn by hand.
4. Holding the longer section stable, tighten the shorter section until it stops by hand.
5. Using the 5/16” open end wrench, carefully hold the longer section stable while
tightening the shorter section with the other wrench. Be careful not to stress the
sparkplug connector while performing this operation.
2.6.3 Sparkplug Removal
1. Attach the installation/removal tool per the above instructions.