Linear RE-1 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-1s in the same installation. 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-1.

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-1s.

Command Prefix for Multiple Units

Programming and relay control may be through the individual RE-1 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-1 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-1 “on hold” to communicate with the second RE-1, then returning to the fi rst RE-1 is not recommended. Instead, fi nish all communications with the fi rst RE-1 before servicing the second RE-1. 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

MODE

RING

HOUSE

TIP

RE-1 RING TELEPHONE HOUSE TIP

BYPASS

MODULE RE-1 RING TELCO TIP

TO

HOUSE

TELEPHONES

	FIRST
		RE-1
	ENTRY
	SYSTEM			CASE
				GROUND
HOUSE		TELCO
RING	TIP	RING	TIP	EARTH

		LAST
		RE-1
	ENTRY
	SYSTEM			CASE
				GROUND
HOUSE		TELCO
RING	TIP	RING	TIP	EARTH

INTERCOM	PROGRAM THIS
MODE	RE-1 UNIT ONLY FOR
	"INTERCOM MODE"
	(PPN #52)

TO

INTERCOM

TELEPHONES

DO NOT CONNECT

TO A LIVE TELEPHONE LINE

RING

HOUSE

TIP

RE-1 RING

TELEPHONE HOUSE TIP

BYPASS

MODULE RE-1 RING

TELCO TIP

FIRST

RE-1

ENTRY

SYSTEM

CASE

GROUND

HOUSE TELCO

RING TIP RING TIP EARTH

		LAST
		RE-1
	ENTRY
	SYSTEM			CASE
				GROUND
HOUSE		TELCO
RING	TIP	RING	TIP	EARTH

EARTH

GROUNDRING

TELCO

TIP

FROM	GROUND	GROUND
TELEPHONE	STAKE	STAKE
	GROUND
COMPANY
	STAKE

EARTH

GROUNDRING

TELCO

TIP

GROUND	GROUND
STAKE	STAKE

GROUND

STAKE

DEDICATED LINE	FIRST						LAST
MODE
		RE-1					RE-1
	ENTRY					ENTRY
	SYSTEM			CASE		SYSTEM			CASE
PROGRAM ALL
				GROUND					GROUND
RE-1 UNITS FOR
"CALL FORWARDING"
(PPN #54)
HOUSE		TELCO			HOUSE		TELCO
RING	TIP	RING	TIP	EARTH	RING	TIP	RING	TIP	EARTH

RING

HOUSE

TIP

RE-1 RING

TELEPHONE HOUSE TIP

BYPASS

MODULE RE-1 RING

TELCO TIP

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

RING DOWN		FIRST						LAST
MODE
			RE-1					RE-1
		ENTRY					ENTRY
		SYSTEM			CASE		SYSTEM			CASE
PROGRAM ALL
					GROUND					GROUND
RE-1 UNITS FOR
"RING DOWN MODE"
(PPN #54)
IF DESIRED, CHANGE	HOUSE		TELCO		EARTH	HOUSE		TELCO		EARTH
RESIDENT RESPONSE KEYS	RING	TIP	RING	TIP		RING	TIP	RING	TIP
(PPN #71)

	HOUSE	RING
		TIP
TELEPHONE	RE-1	RING
	HOUSE	TIP
BYPASS		RING
MODULE	RE-1
EARTH	TELCO	TIP
		RING	FROM	GROUND	GROUND
GROUND	TELCO			STAKE	STAKE
		TIP	PBX	GROUND
				STAKE

Figure 10. Multiple Unit Wiring

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