Terra SRM564, Руководство пользователя

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Table 1
Powering mode
”DC to / from
H trunk lines”
switch position
(see Figure 1,
pos.21)
”DC to / from
V trunk lines”
switch position
(see Figure 1,
pos.23)
Warnings and notes*
1. Multiswich powered from local
PSU (20 V) via DC IN(H) input
(see Figure 1, pos. 20) .
(Recommended for use is PS202F
PSU).
H trunk lines are DC isolated from it.
OFF OFF
Recommended as first choice.
WARNING: BEFORE CONNECTION
ALWAYS CHECK DC TO / FROM H / V
TRUNK LINES SWITCHES
(see Figure 1,
pos. 21, 23).
ITs MUST BE IN POSITION
"OFF"!
Note : All trunk lines preserve DC
bypassing. See “
Diagram of DC paths
".
2.Multiswich is powered from local
PSU (20 V) via DC IN(H) input and
with DC passing to H trunk lines.
In this mode H trunk lines can power
in cascade other multiswiches
(without PSU, with “DC to / from
H lines” switch ON) and other
equipment connected to H trunk
lines.
ON
OFF
WARNING : Don’t overload PSU via H
trunk lines and don’t exceed the current
capability of H trunk lines – check total
system power consumption of multiswich
and from H trunk lines (including all other
equipment connected). See “
Technical
characteristics ”.
Check all other system equipment
connected to H lines if it
can accept 20 V.
SERIOUS DAMAGE OF IT CAN OCCUR!
3. Multiswich is powered from H
trunk lines:
- building new SCR/dSCR system
(18 V - 20 V)
- upgrading systems (15 V - 18 V)
ON
OFF
WARNING
: Don’t exceed the current
capability of system power supply
and H trunk lines. See “
Technical
characteristics
”.
SERIOUS DAMAGE CAN OCCUR IF
OVERLOADED!
4. Multiswich is powered from lo-
cal PSU (20 V) via DC IN(V) input
(see Figure 1, pos.23).
(Recommended for use is PS202F
PSU).
V trunk lines are DC isolated from it.
OFF OFF
WARNING : BEFORE CONNECTION
ALWAYS CHECK DC TO / FROM H / V
TRUNK LINES SWITCHES
(see Figure 1,
pos. 21, 23). ITs MUST BE IN POSITION
“OFF”!
Note : All trunk lines preserve DC
bypassing. See “ Diagram of DC paths “.
5.
and
6.
OFF
ON
Similar to
Powering modes
2 and 3, but in
relation to V trunk lines.
7. Multiswiches in large systems
are powered from one mains point.
In this mode V and H trunk lines
can power in cascade other
multiswitches.
ON / OFF ON / OFF
WARNING: Before power “ON”, select
the optimal combination of DC to / from
H / V line switches
(see Figure 1, pos. 21,
23).
Note : All trunk lines preserve DC bypassing.
See “Diagram of DC paths“.
* Current consumption from DC IN(V) and V lines is slightly higher compared to power from DC IN(H) or H lines (see “ Diagram
of DC paths “ and “ Technical characteristics ” ).
Then switch on receiver(s). The multiswitch will begin the process of auto-detecting which type(s) of receiver connected.
All subscriber outputs are configured to connect legacy STB (su13V/+18V/22 kHz signals), but it switches to
dynamic mode SCR/dSCR if receives a DiSEqC command according EN50494/EN50607.
Disconnect RF cable or STB from necessary output to reset to Legacy / Start mode .
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