Multitech PROXYSERVER MTPSR1-120 - Manual (Page 13)

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Chapter 1 - Introduction and Description
V.35 Shunt Procedure
If you are using an external DCE device on the WAN RS232/V.35 port, and the connection will be
a V.35 connection, the internal 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.
Front Panel Back Panel
Cabinet Mounting Screw
Figure 2-2. 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 Pry the shunt out of the RS232 position, and insert it in the V.35 position.
V.35 Shunt Position
RS232C Shunt Position
Back Panel Connectors
RAM Sockets
LEDs
Figure 2-3. Shunt Positions
6 Align the board with the guide slots on the inside of the chassis and carefully slide the
board back into the chassis.
7 Being sure to support the back panel, turn the ProxyServer over again, and replace the
cabinet mounting screw.
8 Turn the ProxyServer right-side-up again and proceed to the next section to connect the
cables.