EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

SINGLY

TERMINATED SEGMENT TERMINAL BLOCK

FOR Q7750A

ZONE MANAGER

3FIELD INSTALLED

INTERNAL4JUMPER

TERMINATION

 

LONWORKS BUS

USE FOR DOUBLY

5

NETWORK

LONWORKS BUS

TERMINATED

 

6

 

DAISY-CHAIN

 

 

INTERNAL

7

 

SEGMENT

 

 

TERMINATION

 

 

 

8

 

 

NETWORK

 

 

 

FIELD INSTALLED JUMPER

 

 

(A)Enabling Internal Termination Network using jumpers in the Q7750A Zone Manager

LONWORKS BUS

W7750

PART NO. 209541B

TERMINATION

MODULE

LONWORKS BUS

(B)Installing LONWORKS Bus Termination Module at W7750

SEGMENTS

PART NO. 209541B

TERMINATION MODULE

O I IIO I II

A

C

B

O I

II

 

D

O I

II

 

SWITCHES ON SIDE, UNDER

Q7740A,B CIRCUIT BOARD. USE SMALL FLAT OBJECT TO MOVE THE SWITCHES

AS NEEDED FROM

POSITION O (NO TERMINATION) POSITION I (SINGLY TERMINATED) POSITION II (DOUBLY TERMINATED)

INSERT INTO TERMINALS 1 AND 2 WITH THE

LONWORKS BUS WIRE. TERMINATION MODULE IS PHYSICALLY LOCATED BEHIND THE T7770 INSIDE THE 2 X 4 OR 60 MM BOX.

LABEL ON Q7740B 4 WAY REPEATER

NOTE: Q7740B 4 WAY REPEATER SHOWN,

Q7740A 2 WAY REPEATER HAS TWO SWITCHES.

(C)LONWORKS Bus Termination Module installed at 2 x 4 or 60 mm box-mounted T7770

(D)LONWORKS Bus Termination network switches in the Q7740A, B Repeaters

PART NO. 209541B TERMINATION MODULE

Q7751A LONWORKS BUS

PART NO.

ROUTER

209541B

 

 

TERMINATION

 

MODULE

RJ-45

2

PLUG

NET

LONWORKS BUS

LONWORKS

BUS

WIRE NUTS

(E) Installing LONWORKS Bus Termination

(F) Twist wires and attach wire nuts to RJ-45 Adapter

Module at W7751H (terminals 11 and 12)

cables, LONWORKS Bus segment wires and Termination

 

Module to connect to a Q7751A,B Router

M11618A

Fig. 39. LONWORKS® Bus termination wiring options.

Step 5. Order Equipment

After compiling a bill of materials through completion of the previous application steps, refer to Table 11 for ordering information. Contact Honeywell for information about Controllers and Wall Modules with no logo. See Table 11. Excel 10 W7750 Controller Ordering Information.

45

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Honeywell W7750A specifications Order Equipment, Lonworks Bus termination wiring options