Sonance instruction manual Zone Trigger Outputs, Enabling 875D SE Zone Serial Control

SONAMP® 875D SE 8-CHANNEL AMPLIFIER

Zone Trigger Outputs

The 875D SE has individual TRIGGER OUTPUT connections for each zone that provide 12V DC whenever the zone is ON (see Figure 18). This trigger can be used to control other devices such as Sonance AL2/AS2 automatic secondary switches, other Sonamps or 12V relays.

•The current draw on each zone’s TRIGGER OUTPUT connection should not exceed 200mA.

The TRIGGER OUTPUT connectors feature flip-up levers similar to the ones used on the speaker connectors:

1. Open the levers for the zone’s TRIGGER OUTPUTS.

ALL 1/2 3/4	5/6	7/8 CH
+ – + – + –	+ –	+ –

EXTERNAL TRIGGER INPUTS 5 – 24V AC–

Figure 18: Zone Trigger Output

Connections

2.Insert the control wires into the appropriate openings in the connector (observe the correct “+” and “–” polarity).

3.Close the levers.

Serial Control

The 875D SE’s RS-232 Control Input (see Figure 19) allows many 875D SE functions to be serial-controlled by 3rd-party control systems, and allows many of the amplifier’s performance parameters to be monitored in real-time via the 3rd-party controller.

The 875D SE’s open architecture allows you to use it with a variety of RS-232 controllers. Specific modules for use with Crestron® and AMX® controllers are available for download at

www. sonance . com . Please check the website for information about compatibility with additional controllers.

RS-232

Figure 19:

RS-232 Control Input

Connecting the 875D SE to a Serial Control Device

The 875D SE’s RS-232 Pinout is: Pin 2: RXD; Pin 3: TXD; Pin 5: GND .

Use a null modem cable to connect the 875D SE’s RS-232 CONTROL INPUT to a serial control device. To verify the pinout of other serial devices, the TXD pin of an active port will show a negative DC voltage.

NOTE: To connect to a Crestron controller, use the Crestron CNSP- 124 cable (available separately from Crestron) .

Enabling 875D SE Zone Serial Control

To enable serial control of of a zone, both of that zone’s AUTO and VOLT Trigger Mode switches must be set in the ON position (see Figure 20). Setting a zone to RS-232disables its rear-panel Auto and Voltage trigger functions — they can only be serial-controlled.

NOTE: Zones not set for RS - 232 control can be polled by the control device, but cannot be controlled by the device .

TRIGGER MODE
CH 1/2	AUTO	RS-232
	VOLT	RS-232
CH 3/4	AUTO
	VOLT
CH 5/6	AUTO
	VOLT	RS-232
CH 7/8	AUTO
	VOLT	RS-232

OFF ON

Figure 20:

All Four Zones set for

Serial Control

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