Telex BTR-1 4W Intercom Ports, Auxiliary port, Relay, CAN Bus, Pinout of the 4-Wire Jack

4W Intercom Ports

The base station can connect to a 4-wire systems via the RJ-11 jack labeled “4 WIRE”. The pinout for this jack may be seen in figure 6-4. For a description of how to set up the 4 Wire Jack refer to intercom settings in this section. The 4 Wire jack is for balance input and output signals.

PIN 6 5 4 3 2 1

NC = Not Connected

The CAN bus cable starts at the Frequency Manager and then proceeds to the first base station. From the first base station, the CAN bus daily chains though all the base stations, stop- ping finally at the Frequency Manager. Both base station RJ-45 CAN bus connectors are wired in parallel so it does not matter which jack is used for the input or output cable. See Figure 6-6 below for a sample routing of the CAN bus cable. NOTE: For clarity the power, interconnect, and TX/RX ca- bles are not shown in the figure.

CAN BUS	RadioCom	FM-1	100-240 VAC 50-60 Hz
	SYSTEMS MANAGER
	S.N.:	0001
OUT	TERMINATION		POWER

NC	NC
AUDIO IN -	AUDIO IN +
AUDIO OUT -	AUDIO OUT +

Figure 6-4

Pinout of the 4-Wire Jack

Auxiliary port

This jack allows a balanced input auxiliary signal to be placed into the base station. It also allows a balanced output signal to be brought out of the base station. The input signal can be software selected to be local or global. A local input signal is

Telex BTR-1

	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1

	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1
	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1

	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1

CAN BUS

		1	2	3	4
RELAY	AUX	MATRIX		2 WIRE INTERCOM

Telex BTR-1

	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX		2 WIRE INTERCOM
			Telex	BTR-1

	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1
	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1
	CAN BUS
		1	2	3	4
RELAY	AUX	MATRIX	2 WIRE INTERCOM
		Telex	BTR-1

CAN BUS

1 2 3 4

RELAY AUX MATRIX 2 WIRE INTERCOM

only heard at the base station’s local headset and beltpack. A global input signal is heard thoughout the intercom system(s) the base station is current connected to via the selection of the beltpack’s A, B or C button. The pinout for this jack is in fig- ure 6-5.

PIN 6 5 4 3 2 1

NC = Not Cnnected

Figure 6-6

CAN Bus Cables

Relay

A software selectable relay closure is available at the base sta- tion. The relay is normally open. However the base station software options can be set so the relay closes when the beltpack’s “C” button is pushed. The relay schematic is shown in Figure 6-7.

PIN 1

NC	NC
AUDIO IN -	AUDIO IN +
AUDIO OUT -	AUDIO OUT +

Figure 6-5

Pinout of the Auxiliary Jack

CAN Bus

The CAN bus allows the connection of multiple base stations to a Frequency Manager. The Frequency Manager then can be use to set all the base stations to a frequency plan plus set a variety of other options on the base station. The base stations then can program their beltpacks via an over-the-air link. Thus a whole system can be set-up with only a few button presses at the frequency manager. Each frequency manager can control up to 10 base station.

PIN 2

Figure 6-7

Relay Schematic

A “Phoenix” type connector (supplied) plugs into the relay contact port on the base station. This connector provides a screw-type closure for an easy connection to wires.

PHOENIX

TYPE

CONNECTOR

Figure 6-8

Relay Contact Jack Adapter

6-4