Instruction manual

WARNING
BEFORE POWERING UP this instrument and before
connecting any other cable the protective earth terminals
of this instrument must be connected to the protective con-
ductor of the power cord. The power plug shall only be in-
serted in a socket outlet provided with a protective earth
contact. The protective action must not be negated by use
of an extension cord (power cable) without a protective
conductor (grounding).
Make sure that only fuses with the required rated current
are used for replacement. The use of repaired fuses and
the short-circuiting of fuse holders must be avoided.
Whenever it is likely that the protection offered by fuses
has been impaired, the instrument must be made inopera-
tive and be secured against any unintended operation.
AC Power
Connection
Skip this section for DC-powered DV-MUX3 units.
CAUTION
The DV-MUX3 is available in models that differ in the rated
supply voltage (100 VAC, 115 VAC or 230 VAC).
Before first-time installation, check that the DV-MUX3 nomi-
nal supply voltage, marked on a label on its rear panel, matches
the nominal voltage available at your mains outlet.
AC power should be supplied to the DV-MUX3 through the standard power cable
terminated by a standard 3-prong plug. Connect the cable between the AC power
connector on the DV-MUX3 rear panel and a standard grounded AC outlet that
provides a nominal voltage equal to the DV-MUX3 nominal supply voltage.
DC Power
Connection
Skip this section for AC-powered DV-MUX3 units.
Connect the DC power cable to the DV-MUX3 DC power connector,and then con-
nect the other end to the DC power source. Pay attention to correct polarity.
Main Link
Connection
DV-MUX3 main link interface is configured as a DTE interface, intended for con-
nection to a synchronous modem that is capable of providing the clock signals that
determine DV-MUX3 main link data rate.
The main link connector is a 15-pin D-type female connector, wired in accordance
with ITU-T Rec. X.21. When a different interface is selected by means of the in-
ternal jumpers, an interface conversion adapter cable must be inserted between the
DV-MUX3 main link connector and the cable connecting to the main link modem.
The following adapter cables are available:
V.36/RS-449 Use CBL-KM-22/449 adapter cable, terminated in a 37-pin fe-
male D-type connector.
RS-530 Use CBL-KM-22/530 adapter cable, terminated in a 25-pin fe-
male D-type connector.
V.35 Use CBL-DV-MUX/V.35 adapter cable, terminated in a 34-pin
female connector.
V.24/RS-232 Use CBL-DV-MUX/232/N adapter cable, terminated in a 25-pin
female D-type connector.
CABLE CONNECTIONS
DV-MUX3 Installation and Operation Manual 2-13