Emerson E2 Manuel D’Utilisation

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Add-On E2 Peripherals
E2 Hardware Setup
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4
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3
Network, the plug-in card must be connected. No Echelon 
Network communication can occur without the card. The 
plug-in Echelon card connects to the main processor 
board. 
4.3.2
COM3 RS232 Plug-In for 
External Modem (P/N 638-4875) 
Figure 4-5
 - COM3 External Modem 
Modem/com expansion card with an RS232 plug-in 
(COM3) that can interface with an external modem, and 
an RS485 serial communication port plug-in.
4.3.3
COM3 Internal Modem Plug-
In Card (P/N 638-3362) 
Figure 4-6
 - COM3 Internal Modem
E2’s Serial Configuration is the centralized location 
where all communication ports (COM ports) may be set up 
in the E2 controller. To support the increasing number of 
third-party devices that E2 can communicate with, E2 has 
the expanded flexibility of dynamic COM ports that will 
support different types of communication protocols to 
meet the specific needs of the user.
4.3.4
Plug-In Digital I/O Network 
Card (P/N 638-4880)
This card adds two user-programmable digital outputs 
and two digital inputs to enable connection of switches 
and relays (relay contacts are rated at 3A up to 24 VAC).
The plug-in Digital I/O Network card connects to the 
power interface board to the right of the two fixed RS485 
I/O Network connectors. 
Figure 4-7
 - E2 Digital I/O Network Card Install and Wiring
OU
T
P
U
T
 #
1
OU
T
P
U
T
 #
2
IN
PU
T
 #1
IN
PU
T
 #2
E2 E Power Interface Board (PIB)
COM  1  COM  2
E2 Plug-In 
Digital I/O
Network Card
Input and Output Wiring
NORMALLY
OPEN
NORMALLY
CLOSED
4.3.4.1
LEDs
The plug-in Digital I/O Network card LEDs can be 
used to determine the status of normal operating parame-
ters for the card.
Table 4-1
 - LED Status for Plug-In Digital I/O Card
Plug-In Digital I/O 
Card LEDs
Status
Red D1 (Out 1)
ON: Relay Output 1 is On
Red D4 (Out 2)
ON: Relay Output 2 is On
4.3.5
Plug-In Four-Channel 
Internal Repeater
The four-channel repeater (P/N 638-4830) boosts sig-
nal strength on Echelon Networks. However, the four-
channel repeater is also useful as a means of connecting 
the E2 to its associated devices using more than one daisy 
chain.
With a four-channel repeater mounted in the E2, you 
can run as many as three daisy chain segments out into the 
field, each of which can be as long as the prescribed Eche-
lon maximum wire length. The fourth channel of the 
repeater can be used to connect other E2s in a separate 
daisy-chain, eliminating the need to run cable from the 
field back to the next E2.
The plug-in Four Channel Internal Repeater card con-
nects above the power interface board on the case mounts 
using standoffs and screws.
Repeater for more information.