Owner`s manual

page 5
Installing and Connecting
Before you do anything, please register your unit with us as soon as possible. We provide a 5 year
transferable warranty on all of our products and registering it with us makes is easy if and when help
becomes necessary. So please take a few minutes to complete the enclosed warranty registration card
and mail it in, or simply ll out the warranty registration form on our web site. Thank you!
Installing the m502 in a 500 series rack
1. Open your m502 box. The module is in a bag under the plastic ‘korvu’ retaining sheet, which you
should be careful not to cut. Simply fold down the outer cardboard aps, then the under side
aps, which will loosen the module from under the plastic sheet.
2. Turn o your 500 series rack frame (hot swapping 500 series modules = bad). Inspect the card slot
you intend you use to make sure that it is clean and free of any debris.
3. Before removing your m502 from its anti-static bag, discharge any static electricity buildup you
may have by touching your 500 series rack or other gear that is properly grounded.
4. Pull your m502 module out of its anti-static bag and carefully slide it into place in the designated
opening. Sight down the back of the module (use a ashlight if necessary) and ensure the card
edge connector is aligned to seat into the card slot of the frame.
5. Firmly and evenly push the m502 module into place until its is positively seated in the card slot.
6. Use the 2 supplied #4-40 hex head screws and 3/32” hex wrench to mount the m502 front panel to
the 500 series rack. These screws can have a tight t so please be careful not to cross thread them.
7. Plug your 500 series rack back into the AC source and power up your rack. Your m502 will
automatically power up with your 500 series rack.
BALANCED LINE INPUT
The m502 line input is located on the back of your 500 series rack. This connector should be wired pin
2 positive, pin 3 negative and pin 1 ground (check with your rack manufacturer’s documentation for
connector details).
BALANCED LINE OUTPUT
The balanced XLR line output connector is located on the back of your 500 series rack. This connector
should be wired pin 2 positive, pin 3 negative and pin 1 ground (check with your rack manufacturer’s
documentation for connector details).
OTHER CARD CONNECTIONS
In addition to the basic I/O provided on the back of the 500 series rack, there are a couple other
options for signal routing available on the m502 depending on which 500 series rack you are using.
Typically, 500 series module card edge pins 7, 9 and 11 are left unconnected. However, Radial
Engineering and Purple Audio both implement these locations in useful ways, so we have added
connections to them.
• Pin 7 is connected to the ring of the 1/4” TRS connector labeled “OMNIPORT” on the Radial
Workhorse or “OPT IN” on the Purple Sweet Ten Rack for stereo linking of two m502’s.