PT-Link II N2-3 Interface
PT-Link II N2-3
®
Technical Guide
5
Connection and Wiring Information
Figure 2: PT-Link II N2
®
Interface
Wiring
Modular Service Tool
Mode
Selection
ENTER
CLEAR
ESC
PREV
NEXT
DOWN
UP
6
5
4
DEC
7
0
8
1
3
2
9
MINUS
-
STATUS
SETPOINTS
SCHEDULES
CONFIGURATION
ALARMS
ON
OVERRIDES
BALANCE - TEST
Up To 4 Controllers
Can Be Interconnected.
Controller’s Address
Cannot Be Higher Than 16.
Note:
All Programming Of
Controllers Must Be Done
Using The Modular Service
Tool. The Modular System
Manager Should Not Be Used
On A System That Has A
PT-Link Installed.
Caution:
The
Communication Terminal Block
Must Be Disconnected Before
Connecting The Modular Service
Tool. After Programming The
Controller(s), Disconnect The
Service Tool and Then Reconnect
The Communication Terminal
Block.
Metasys N2
®
®
Line Voltage
24 VAC
(8 VA)
Line Voltage
24 VAC
(8 VA)
Line Voltage
Controller
Controller
Controller
Controller
24 VAC
(8 VA)
Line Voltage
24 VAC
(8 VA)
SHLD
T
R
Typical Terminal Blocks. All
Wiring To Be T To T, SHLD
(G) To SHLD (G) & R To R
+
-
G
Wiring Notes:
1.) All wiring to be in accordance with local and national
electrical codes and specifications.
2.) All communication wiring to be 18 gauge minimum, 2
conductor twisted pair with shield. Use Belden #82760 or
equivalent.
Line Voltage
24 VAC
(10 VA)
PT- Link- N2 Interface
®
Metasys N2 Open
Communications
Wiring Terminals
®
®
Metasys N2 Open
Communications
Wiring Terminals
®
®
IMPORTANT WIRING NOTE:
Use the Daisy-Chain Topology As Shown in This Diagram.
DO NOT Use a Star Topology with Multiple Units Tied
Directly to the PT-Link II.
1
2
3
4
5
6
7
8
O
N
O
N
1
2
3
4
ON
RSGND
www.orioncontrols.com
WattMaster Label
#LB102080-01
Rev. 01A
OE368-23N-N2-3
PT-LINK II PROTOCOL
TRANSLATOR
FOR N2
+24
VAC
GND
LOOP
LED 1
LED 2
=RAPID BLINK
=BLINKS QTY
CONTROLLERS
= STEADY BLINK
PROTO
TIMER
WATCH DOG
H-BEAT
=RAPID BLINK
= STEADY BLINK
= ON SOLID
= STEADY BLINK
LED BLINK CODES (NORMAL)