Nyquist NQ-E7020 - Intercom Bogen - Free user manual and instructions

Product Type	Digital Call Switch
Brand	Bogen
Model	Nyquist NQ-E7020
Mounting	Single gang outlet box, decora wall plate
Interface	Capacitive touch button
Indicator	Multi-color LED ring (solid, blinking)
Power Supply	5V DC via CAN Bus from master device
Communication	CAN Bus protocol
Connections	Screw terminals: GND, CL, CH, 5V
Cabling	Standard CAT5 (24 AWG solid copper recommended)
Max Cable Length	600 ft (using 3-pair) for up to 24 switches
Daisy-Chain Capacity	Up to 68 switches (depending on cable length and pairs)
End-of-Line Termination	Requires load resistance on last DCS
Call Types	Normal, Urgent, Emergency
Application	Staff call initiation via Nyquist intercom system
Configuration	Via Nyquist system administrator (System Parameters, Class of Service)
LED Status Indications	Call initiation, call termination, queue cleared, individual clear
Compliance	Refer to administrator manual for regulatory info
Dimensions (approx.)	Standard decora switch size (4.5 x 2.75 x 1.5 in)
Operating Environment	Indoor, dry location (typical)

Frequently Asked Questions - Nyquist NQ-E7020 Bogen

What is the Bogen Nyquist NQ-E7020?

It is a digital call switch used to initiate normal, urgent, or emergency calls from staff locations via a Nyquist intercom system.

How is the NQ-E7020 mounted?

It mounts into a standard single gang outlet box and is covered with a standard decora wall plate.

What connections does the switch have?

It has four screw terminals: GND, CL, CH, and 5V, which connect to the CAN Bus source/master device using CAT5 cabling.

What cable type is recommended?

Standard CAT5 cable with 24 AWG solid copper wire is recommended. Copper-plated aluminum or thinner wire may affect performance.

How many switches can be daisy-chained?

The number depends on cable length and wire pairs used. For example, with 3-pair CAT5 at 200 ft, up to 68 switches can be deployed.

What does the LED ring indicate?

The multi-color LED ring confirms actions, shows status (solid/blinking), and indicates call initiation, termination, or queue clearing.

How is the switch powered?

It is powered by 5V DC supplied through the CAN Bus connection from the master device.

Do I need to set a load resistor?

Yes, an end-of-line load resistance must be set on the last digital call switch in the daisy-chain.

How do I configure the DCS?

Configuration is done via the Nyquist system administrator by setting System Parameters and Class of Service parameters.

Where can I find the full manual?

The complete application manual is available for download on the Bogen website or through the device's product page.

USER MANUAL Nyquist NQ-E7020 Bogen

NQ-E7020 Digital Call Switch Application Manual

The NQ-E7020 is a single gang-box style wall mounted push-button switch that allows users to initiate a normal, urgent, or emergency call from staff locations via an associated Nyquist intercom speaker.

The switch uses a capacitive touch button interface. A color LED ring is used to confirm user actions and to indicate status (for example, changing color and/or state from solid color to blinking) or to acknowledge a button press when a user initiates a call or when a call has been terminated. The LED status ring is also used to indicate when Nyquist system's call queue containing the station's call request is cleared or if the station's call request is individually cleared by the administrative station without responding.

Installation

The NQ-E7020 mounts into a standard single gang outlet box and is outfitted with a standard decora plate (color based on the switch's specific application and/or customer need). The back has four screw-terminal connections (GND, CL, CH, 5V). These get connected to the matching terminals on the CAN Bus source/master device using standard CAT5 cabling. Load resistance needs to be set on the end-of-line DCS. Refer to Figure 1.

graph LR
    A["NYQUIST Appliance"] -->|Signal Ground| B["SOGEN"]
    A -->|CAN_L| C["Digital Call Switch"]
    A -->|CAN_H| C
    A -->|5V| C
    D["Digital Call Switch Applicable"] -->|TOXIC TO ACINATE| E["SOGEN"]
    D -->|TOXIC TO ACINATE| F["SOGEN"]
    D -->|TOXIC TO ACINATE| G["SOGEN"]
    style A fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333
    style B fill:#cfc,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333

CAN_H and CAN_L must be a twisted pair like CAT5 cabling.
CAN wiring can be daisy-chained.
All devices are internally terminated and the last switch on the bus must have the termination switch in the "ON" position.
5V and Signal Ground can be either twisted or not.

Figure 1

Recommended CAT5 Cable Lengths

CAT5 cable lengths and the number of CAT5 wire pairs determine the number of digital call switches that can be daisy-chained. (See Figure 2.)

Length limits are due to voltage drop across the power conductors. For 2-pair or 3-pair, it is best to tie the solids together and to tie the stripes together at each end of a long run. This will make it easier to keep up with which wires are V+ and V-.

	Number of CAT5 Wires to Carry 5V to Parallel Switches
	1 Pair	2 Pair (Twisted)	3 Pair (Twisted)
CAT 5 Length (in feet)	Number of Digital Call Switches That Can Be Deployed
600	8	16	24
500	9	18	29
400	12	24	35
300	16	30	48
200	24	48	68

Figure 2

CAUTION:

These calculations are based on standard 24 AWG solid copper wire. Calculations will not be accurate for copper-plated aluminum wire or wire guage less than 24 AWG.

Configuring

NOTE: Refer to the System Administrator Manual for detailed instructions on how to configure the DCS. DCS configuration is part of setting System Parameters and Class of Service parameters.