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CHAPTER 3: Configuration
3.1.1 R
EVERSIBLE
I
NTERFACE
D
RIVER
B
OARD
The mDSL Rack Card features switchable interface driver boards that allow a wide
range of DTE interface connections. Figure 3-3 shows the interface driver board on
the top of the mDSL Rack Card PC board.
Figure 3-3. Close-up of the interface driver board.
Follow the instructions below to select the correct interface for your application:
1. With the mDSL front card pulled out of the rack chassis, locate the driver
board on the top of the mDSL front card.
2. Lift the interface board gently off of the PC board.
3. Locate the correct interface on the bottom of the driver board. For example,
the RS-232/V.35 interface board is marked “THIS SIDE UP FOR RS-232” on
one side and “THIS SIDE UP FOR V.35” on the other side. Other “single”
interface boards are marked with “FRONT” on one side of the board.
4. Re-orient the interface board into the socket with the appropriate interface
pointed UP and with the arrow pointing toward the front panel of the mDSL
Rack Card PC board.
5. Push the interface driver board gently onto the socket and re-install into the
rack system.
THIS SIDE UP FOR V.35.
Interface
Driver
Board
FRONT