8-Position Dip Switch; V.35 Shunt Procedure - Multitech ProxyServer MTPSR2-201 User Manual

8-Position DIP Switch

The ProxyServer is equipped with a 8-position DIP switch. Figure 2-2 shows the DIP switch, and
the chart that follows details the default positions and other options.
1 2 3 4
Figure 2-2. 8-position DIP switch
Position 1:
Position 2:
Positions 3 - 8:
* Denotes Factory Default setting
Note: The DIP switch settings cannot be changed externally; you must remove the circuit board
from the chassis. Refer to the steps in the next section, V.35 Shunt Procedure, for instructions on
removing the circuit board.

V.35 Shunt Procedure

If you are using an external DCE device on the WAN 2 RS232/V.35 port, and the connection will
be a V.35 connection, the the interal shunt must be moved from the RS232C (default) position
prior to cabling and power-up. The following steps detail the procedures for switching the shunt.
Step Procedure
1 Ensure that the external power supply is disconnected from the ProxyServer.
2 Turn the ProxyServer over and remove the cabinet mounting screw from the chassis.
Figure 2-3. Cabinet Mounting Screw
3 Being sure to support the back panel, turn the ProxyServer right-side-up, tilt the back
panel down, and slide the circuit board out of the chassis.
4 Place the unit on a flat, grounded surface with the LED's facing you.
5 6 7 8
OPEN* (up) Normal Mode operation
Closed (down) Loopback Mode operation
OPEN* (up) DDS clocking
Closed (down) Internal Clocking
Reserved for future use.
Front Panel
Back Panel
Cabinet Mounting Screw
Chapter 2 - Installation
13