Linear RE-2 manual Multiple Unit Installations, Command Prefix for Multiple Units

MULTIPLE UNIT INSTALLATIONS

Any of the four basic operation modes (Shared Line, Dedicated Line, Intercom, and Ring Down) may be used with multiple RE-2s. The telephone line wiring is “daisy chained” (the telephone line routes through one unit to the next) as shown below. Always connect the telephone line + to TIP, and - to RING.

The Telephone Bypass Module only performs the bypass function in the Shared Line Mode, but it will provide extra electrical surge protection in all modes. A surge on the TELCO terminals will be suppressed through the EARTH GROUND terminal. Always use separate AC transformers to power each RE-2.

When multiple units are connected together, only two units can be controlled by resident telephone commands, and only one unit can be programmed to answer the telephone (PPN #33) for remote telephone commands. Remote programming via computer is not supported when using multiple RE-2s.

Command Prefix for Multiple Units

Programming and relay control may be through the individual RE-2 keypads or through the house telephone(s) when using the Shared Line or Intercom Modes. To support using the house telephone(s) to issue commands, each RE-2 must be programmed to a different “command prefi x” (PPN #72).

•Set one unit’s command prefi x to

•Set the other unit’s command prefi x to

In the case of simultaneous visitors at different units when using the Shared Line Mode, putting one RE-2 “on hold” to communicate with the second RE-2, then returning to the fi rst RE-2 is not recommended. Instead, fi nish all communications with the fi rst RE-2 before servicing the second RE-2. Simultaneous visitors at multiple units used on a single line wired in the Ring Down Mode will cause a “conference call” effect between units

SHARED LINE

FIRST

LAST

MODE

RE-2

RE-2

ENTRY

ENTRY

SYSTEM

CASE

SYSTEM

CASE

GROUND

GROUND

TO

HOUSE

TELCO

HOUSE

TELCO

HOUSE

RING

TIP

RING

TIP

EARTH

RING

TIP

RING

TIP

EARTH

TELEPHONES

HOUSE

RING

TIP

TELEPHONE

RE-2

RING

HOUSE

TIP

BYPASS

RING

MODULE

RE-2

EARTH

TELCO

TIP

RING

FROM

GROUND

GROUND

GROUND

STAKE

STAKE

TELCO

TELEPHONE

GROUND

TIP

COMPANY

STAKE

DEDICATED LINE

FIRST

LAST

MODE

RE-2

RE-2

ENTRY

ENTRY

SYSTEM

CASE

SYSTEM

CASE

PROGRAM ALL

GROUND

GROUND

RE-2 UNITS FOR

"CALL FORWARDING"

(PPN #54)

HOUSE

TELCO

HOUSE

TELCO

RING

TIP

RING

TIP

EARTH

RING

TIP

RING

TIP

EARTH

HOUSE

RING

TIP

RE-2 RING

TELEPHONE HOUSE TIP

BYPASS

MODULE RE-2 RING

TELCO TIP

EARTH	RING	FROM	GROUND	GROUND
GROUND		TELEPHONE	STAKE	STAKE
	TELCO	COMPANY	GROUND
	TIP
			STAKE
		OR PBX

INTERCOM	PROGRAM THIS
MODE	RE-2 UNIT ONLY FOR
	"INTERCOM MODE"
	(PPN #52)

TO

INTERCOM

TELEPHONES

DO NOT CONNECT

TO A LIVE TELEPHONE LINE

RING

HOUSE

TIP

RE-2 RING

TELEPHONE HOUSE TIP

BYPASS

MODULE RE-2 RING

TELCO TIP

EARTH

GROUNDRING

TELCO

TIP

RING DOWN

MODE

PROGRAM ALL

RE-2 UNITS FOR "RING DOWN MODE"

(PPN #54)

IF DESIRED, CHANGE RESIDENT RESPONSE KEYS (PPN #71)

RING

HOUSE

TIP

RE-2 RING

TELEPHONE HOUSE TIP

BYPASS

MODULE RE-2 RING

TELCO TIP

EARTH	RING	FROM
GROUND
	TELCO	PBX
	TIP

	FIRST						LAST
		RE-2					RE-2
	ENTRY					ENTRY
	SYSTEM			CASE		SYSTEM			CASE
				GROUND					GROUND
HOUSE		TELCO			HOUSE		TELCO
RING	TIP	RING	TIP	EARTH	RING	TIP	RING	TIP	EARTH

				GROUND					GROUND
				STAKE					STAKE
		GROUND
		STAKE
	FIRST						LAST
		RE-2					RE-2
	ENTRY					ENTRY
	SYSTEM			CASE		SYSTEM			CASE
				GROUND					GROUND
HOUSE		TELCO			HOUSE		TELCO
RING	TIP	RING	TIP	EARTH	RING	TIP	RING	TIP	EARTH

GROUND	GROUND
STAKE	STAKE

GROUND

STAKE

Figure 10. Multiple Unit Wiring

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