Groundlift
The ground lift switch allows eliminating hum noise loops. When operating the power amplifier
together with other equipment in a rack case, setting the switch to the GROUNDED position is
recommended. Set the switch to UNGROUNDED, when the power amplifier is operated
together with appliances with differing ground potentials.
USB B connector
The USB B connector is used for remote control configuration and firmware updates. With the
included USB AB cable you can connect the amplifier directly to a PC. To connect multiple
amplifiers use an external USB-hub or range extender.
For firmware updates, amplifier control software, and product related information visit our
website: www.dynacord.com/software
.
Power remote
POWER REMOTE (standby mode) provides a simple way to remotely power-on/off the power
amplifier. Leaving the pins of POWER REMOTE socket open the appliance power is switched
on. When connecting the pins the appliance enters standby mode.
Power on delay
The ON DELAY switch at the amplifier rear panel allows selecting the power on delay time.
The On delay table shows possible switch settings and corresponding delay times.
ON DELAY Delay time (in s) ON DELAY Delay time (in s)
0 0.52 8 1.05
1 0.59 9 1.15
2 0.63 A 1.25
3 0.69 B 1.40
4 0.75 C 1.49
5 0.84 D 1.55
6 0.90 E 1.61
7 0.95 F 1.69
Table 6.1: On delay
GPI/GPO
C Series amplifiers include two GPIs and one GPO.
6.4
6.5
6.6
6.7
6.8
L Series and C Series FIR-Drive Power
Amplifiers
Controls, indicators and connections | en 19
Bosch Sicherheitssysteme GmbH Installation manual 2017.10 | 02 | F.01U.327.801
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