Commlink Ii Installation; Figure 13: Commlink Ii Wiring - York EZ Zone Upgrade Manual

036-21423-001 Rev. A (0602)

CommLink II Installation

Commlink II Communications Interface
Part #CLMA19A1
MODEM
(DTE)
Molded Modem Cable.
Part #HZ000098
Supplied With CommLink
25 Pin
Male
Connect To Modem
Only
Modem Is Part # OE419-02
Caution: Do Not Use The "Molded Cable" To
Connect To The Computer (DCE) Connector.
This Cable Is Only To Be Used To Connect
From The CommLink (DTE) Connection To
The Modem (When Used).
Notes:
1.)24 VAC Must Be Connected So
That All Ground Wires Remain
Common.
2.)All Wiring To Be In Accordance
With Local And National Electrical
Codes And Specifications.

Figure 13: CommLink II Wiring

Upgrade
(Jumper Set For Multiple Loop)
485 LOOP 485 LOOP
R
T G
COMPUTER
(DCE)
Network Loop
RS-485
19200 Baud
(See Note 3).
Connect Supplied RJ12 Modular Phone Cable
To Supplied 9 Pin Or 25 Pin Connector As Reqd
By Your Computer Com Port Connection
25 Pin
9 Pin
Female
Female
.
Use 25 Pin Or 9 Pin Connector As
Required By Available Serial (COM) Port
On Computer.
Caution: Do Not Use The "25 Pin Or 9 Pin Cable" To
Connect To The Modem (DTE) Connector.. This
Cable Is Only To Be Used To Connect From The
CommLink (DCE) Connection To The Computer
(When Used) Serial Port (COM) Connection.
3.)All Communication Wiring To Be
2 Conductor Twisted Pair With
Shield. Use Belden #82760 Or
Equivalent.
CommLink Is Supplied With 110/24VAC Power Supply.
24VAC
POWER
G
2
N
4
V D
4 Piece Computer
Cable Kit.
Part # HZ000112
Supplied With
Caution:
CommLink
Disconnect All Communication Loop Wiring
From The CommLink Before Removing Power
From The CommLink. Reconnect Power And Then
Reconnect Communication Loop Wiring.
PIN 1
CommLink Jumper Switch Settings
Note:
For Meridian Basic System (See Example 1 page 8 &
9) jumper must be set for single loop operation as
shown above.
For Meridian Plus System (See Example 2 page 10 &
11) jumper must be set for multiple loop operation as
shown above.
EZ Zone/Meridian
If Desired A Transformer (By Others)
May Be Wired To The CommLink Instead
Required VA For Transformer
CommLink = 14VA Max.
Line Voltage
See Note 1
120/24 Vac
Transformer
Part # PX000015
Connect To First Zone
Manager On Network Loop
All Communication Loop
Wiring Is Straight Through
T T T T
SH SH SH SH
R R R R
COMM DRIVER CHIP
( U1 )
Note:
Place Jumper Between
Pins 1 & 2 for Multiple
Loop Applications &
Between Pins 2 & 3 for
Single Loop Applications
MULTI
SINGLE
25