Specifications

4-4 • E2 RX/BX/CX I&O Manual 026-1610 Rev 10 06-APR-2010
4.3.3 Plug-In Modem Card (P/N
537-4870) with mounting screws
(P/N 101-4038) and standoffs (P/N
107-9440) (Previous Generation Pro-
cessor Board)
The E2’s internal modem mounts in the PC-104 slot
located at the top left edge of the E2 main processor board
(See Figure 3-18 on page 3-6). Disconnect power to the
unit, and carefully plug the male pins on the back of the
modem card into the E2’s PC-104 slot. Use the standoffs
and screws supplied with the modem card to secure the
card to the main processor board, as shown in Figure 3-18
on page 3-6). When finished, restore power to the E2.
4.3.4 Plug-In Digital I/O Network
Card (P/N 537-4880)
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.
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.
4.3.5 E2 RS485 Port Card (P/N
537-4890)
The E2 main board has two RS485 Network channels,
allowing you to connect input and/or output boards via the
RS485 Network. This optional card adds a second RS485
port (COM4) to the E2, allowing a connection to the ISD
compressors, Control Link devices, and other supported
MODBUS devices.
The plug-in RS485 Network card connects to the
power interface board between the two fixed RS485 I/O
Network connectors and the battery.
4.3.5.1 LEDs
The plug-in RS485 Network card LEDs can be used to
determine the status of normal operating parameters for
the card.
Modem P/N Description
637-4871
Modem/com expansion card with modem and RS485
serial communication port plug-in.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
637-4872
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. This model
comes with a cable that has a male DB-9 header and a
DB-9 to DB-25 converter (not shown) to support the
standard external modem interface.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
637-4873
Com expansion card with RS485 serial communication
port.
Note that the RS232 and RS485 ports are counted as one
port (COM6); only one connector at a time may be used.
The COM6 RS232 will be selectable in future versions
of E2.
Table 4-1 - Modem/Com Card Part Numbers and Descriptions
COM6
RS232
COM6
RS485
Plug-In
Modem
COM3
COM6
RS232
COM6
RS485
COM3 RS232
Plug-In for
External Modem
COM6
RS232
COM6
RS485
Figure 4-6 - E2 Digital I/O Network Card Install and Wiring
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
Table 4-2
- LED Status for Plug-In Digital I/O Card
E2 Power Interface Board (PIB)
COM 1 COM 2
OUTPUT #1 OUTPUT #2 INP
U
T
#
1
INP
U
T
#
2
E2 Plug-In
Digital I/O
Network Card
Input and Output Wiring
NORMALLY
OPEN
NORMALLY
CLOSED