Terra SRM522 - External View; Installation Instructions

2
Installation instructions
Read the safety instruction rst.
Fit multiswitch on mounting place and connect it (pay attention to the multiswitch inputs and Wideband or Quattro LNBs
outputs marking), connect the isolated 75 Ω loads to the unused RF output F sockets, power on multiswitch using one of 4
powering modes (see Table 1).
1 - V SAT A trunk input (SAT A V, Lo trunk input in Quattro LNB
IF frequency range input mode)
2 - H SAT A trunk input (SAT A H, Lo trunk input in Quattro LNB
IF frequency range input mode)
3 - V SAT B trunk input (SAT A V, Hi trunk input in Quattro LNB
IF frequency range input mode)
4 - H SAT B trunk input (SAT A H, Hi trunk input in Quattro LNB
IF frequency range input mode)
5 - Terrestrial TV trunk input
6 - DC 20 V power input
7 - dSCR1 output
8 - dSCR2 / Legacy output
9 - V SAT A trunk output (SAT A V, Lo trunk output in Quattro LNB
IF frequency range input mode)
10 - H SAT A trunk output (SAT A H, Lo trunk output in Quattro
LNB IF frequency range input mode)
11 - V SAT B trunk output (SAT A V, Hi trunk output in Quattro
LNB IF frequency range input mode)
12 - H SAT B trunk output (SAT A H, Hi trunk output in Quattro
LNB IF frequency range input mode)
13 - Terrestrial TV trunk output
14 - Functional grounding clamp
15 - Conguration input (see chapter “Conguration”)
All sockets are “F” type.
Figure 1. External view of the multiswitch
External view
1 2 3 4 5
9 10 11 12 13
6
7
8
14
H
DC
DC
H
DC
DC
H
H
V SAT A SAT B
V
V
V
Terr.TV
Terr.TV
dSCR1
DC IN
dSCR2
Legacy
Open:
Wideb.
Load:
Quatro
dSCR multiswitch SRM522
Frequency SAT TV
range Terr. TV
SAT/Terr. loss
290-2350 MHz
5-862 MHz
3/4 dB
DC IN
20V 2A
15
Table 1
Powering mode Warnings and notes
1. Multiswitch is powered from local PSU
(20 V) via DC input (see Figure 1, pos. 6) and
pass DC to H trunk lines.
(Recommended for use is PS202F 20V PSU).
Recommended as rst choice.
WARNING: Don’t overload PSU via H trunk lines – check total
system power consumption of multiswitch and from H trunk lines
(including all other equipment connected).
Check all other system equipment connected to H lines if it can
accept 20 V. SERIOUS DAMAGE OF IT CAN OCCUR!
Note: All trunk lines have DC bypassing.
2. Multiswitch is powered from H trunk lines:
- build new SCR/dSCR system (18 V -20 V)
- upgrading old legacy systems (15 V - 18V)
WARNING: Don’t exceed the current capability of system power
supply.
SERIOUS DAMAGE CAN OCCUR IF OVERLOADED!
3. Multiswitch is powered from dSCR1/DC IN
or dSCR2/Legacy outputs (subscriber) (see
Figure 1, pos. 7, 8).
Multiswitch and equipment connected to H trunk
lines powered directly from STB’s.
WARNING: MULTISWITCH WILL DRAW CURRENT AND
POWER FROM OUTPUT WITH HIGEST VOLTAGE!
STB’s connected to tap outputs must ensure supply su󰀩cient
power for multiswitch and all equipment connected to H trunk
lines. If not see below.
4. Multiswitch is powered from dSCR1/DC IN
output via dSCR power inserter
(see Figure 1, pos. 7).
(Recommended for use is PI012).
This mode is similar to 1 mode.
Multiswitch and equipment connected to H trunk lines powered via
dSCR power inserter with 22 kHz bypass connected to any dSCR
output. Use dSCR1 output if Legacy STB is connected to dSCR2/
Legacy output.
WARNING: Don’t exceed the current capability of power inserter
and dSCR outputs (800 mA max.).
SERIOUS DAMAGE CAN OCCUR IF OVERLOADED!