FEATURES AND FUNCTIONS
Front Panel
1.
GLOBAL PAD: Attenuates the signal going to the XLR direct box
outputs by -20dB to prevent transformer saturation.
2.
AUTO ON: Activates the auto-switching mode. When active
it monitors the gate input (channels 1, 8 or direct) for a drone
signal and switches from inputs-A to inputs-B if the signal
disappears.
3.
THRESHOLD: Sets the gate input sensitivity. If the drone signal
drops below the set threshold the SW8 will switch from inputs-A
to inputs-B. Two level sensing LED's illuminate when signal is
detected.
4.
MUTE: Turns off the balanced XLR outputs, leaving the
balanced D-Sub output on for local monitoring.
®
CONTROL MONITOR
PAD
AUTO
MUTE
STANDBY
THRESHOLD
GLOBAL
ON
A
TONE
B
1
2
3
4
5
11
Rear Panel
11. TRS ¼" INPUTS-A & B: Two sets of eight balanced or unbalanced
line-level inputs for your primary and backup multi-track units.
12. D-Sub OUTPUT: Balanced line-level output is used to send the
active input set (A or B) to the PA or local monitor system.
13. D-Sub INPUTS: Balanced line-level A and B inputs are used to
connect two multi-track playback units to the SW8.
14. ALT 1/8: Selects between channel 1 or channel 8 to receive the
drone track for auto-switching.
15. FILTER: Lets you use a binary audio signal such as SMPTE
time code as a drone track by smoothing out the signal for better
detection.
16. AUTO-SWITCH GATE INPUT and MONITOR OUTPUT: The ¼"
TRS input lets you connect directly to the auto-switching gate.
Used as an alternate to channels 1 or 8, so that all eight channels
are available for playback tracks. The ¼" monitor output lets you
listen to the drone track to ensure it is being received.
17. ON A/B (JR2 FOOTSWITCH): Turns on remote A/B switching
when using the optional JR2 footswitch and disables the front
panel A/B select switch.
18. JR2 FOOTSWITCH XLR:
remote footswitch. Lets you remotely switch between A & B
inputs and engage the standby mode.
19. JR2-IN and LINK-OUT: ¼" TRS input may be used with the JR2
instead of the XLR. Also used to link multiple SW8's together for
larger 16 and 24 channel playback systems.
Radial Engineering Ltd.
LIFT
LIFT
INPUT SELECT
ALARM
TONE
A
B
BELOW
THRESHOLD
PIN-1
PIN-1
8
7
6
12
Connection for the optional JR2
5.
STANDBY: Holds the auto-switching on inputs-A so that the
SW8 does not switch to inputs-B while waiting for drone signal.
6.
A-B SELECT: Front panel selector used to manually switch from
inputs-A to inputs-B.
7.
ALARM LED: Illuminates when the drone signal falls below the
set threshold level.
8.
XLR OUT: Balanced, low-Z mic-level direct box outputs connect
to the PA system and are transformer isolated to help eliminate
hum and buzz caused by ground loops.
9.
LIFT: Disconnects pin-1 on the XLR output to further assist in
reducing noise caused by ground loops.
10. LABEL STRIP: Easy to read, wax pencil label strip for channel
identifi cation and assigment.
LIFT
LIFT
LIFT
PIN-1
PIN-1
PIN-1
9
24
13
14
15
16
17
20. CONTACT ALARM: Tip-sleeve ¼" connection from an i nternal
relay can turn on a siren or beacon when the drone signal
drops below the set threshold.
21. CONTACT INPUT: Tip-sleeve ¼" latching contact closure is
used to switch the SW8 with a remote footswitch or contact.
22. 15 VDC SUPPLY: Provides power to the SW8. Handy cable lock
ensures supply will not be accidentaly disconnected.
Top Panel Switches
23. REMOTE LINK OUTPUT MODE: Used when linking the
SW8mk2 to an older SW8(mk1) through ¼" LINK-OUT jack.
24. STANDBY SWITCH CONTROL MODE: Assigns the standby
function to either the local front panel switch or the MUTE
footswitch on the optional JR2.
23
2
8-CH AUTO
LIFT
LIFT
LIFT
BACK-UP
SWITCHER
PIN-1
PIN-1
PIN-1
10
23
18
19
20 21
22
24
SW8
MK2 User Guide
™
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