RouteFinder MTASR1-100 User Guide

MTASR1-100

10
Shunts
A shunt on the WAN port allows the same connector to be configured for an ITU-T V.35 electrical
interface signaling or EIA-232C/D signaling. The ITU-T V.35 signaling levels are generally more
reliable for high speed data and/or longer cable distances. The EIA-232C/D signaling is intended for
data rates of 19.2 Kbps or less and cable lengths of 50 feet or less. For higher speeds and/or longer
distances, the V.35 is generally preferred.
The shunt positions are toward the back of the printed circuit board (See Figure 1-4).
5678
V.35 Shunt Position
RS232C Shunt Position (Default)
Back Panel Connectors
8-Position DIP Switch
RAM Sockets
LEDs
Figure 1-4. Shunt Positions
The RouteFinder has a shunt for the RS-232 and the V.35 links. The RS-232 and V.35 shunt positions
are identified. To change the position of the shunt, refer to the V.35 “Changing Shunt Position”
procedure.