Emerson E2 operation manual Plug-In Digital I/O Network Card P/N, Modem P/N Description

4.3.2Modem/Communication Expansion Card (New Processor Board)

The E2’s modem/communication expansion card mounts above the PIB in the back of the enclosure box as shown in Figure 4-6. See Table 4-1for modem expansion card types and descriptions.

Figure 4-6- Modem/Com Expansion Card Layout and Mounting

Modem P/N	Description
637-4871	Modem/com expansion card with modem and RS485
COM6	serial communication port plug-in.
RS232
	Note that the RS232 and RS485 ports are counted as one
COM6	port (COM6); only one connector at a time may be used.
RS485	The COM6 RS232 will be selectable in future versions
	of E2.
COM3
Plug-In
Modem
637-4872	Modem/com expansion card with an RS232 plug-in
COM6	(COM3) that can interface with an external modem, and
RS232	an RS485 serial communication port plug-in. This model
	comes with a cable that has a male DB-9 header and a
COM6	DB-9 to DB-25 converter (not shown) to support the
RS485	standard external modem interface.
COM3 RS232	Note that the RS232 and RS485 ports are counted as one
Plug-In for
External Modem	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
COM6	port.
RS232	Note that the RS232 and RS485 ports are counted as one
	port (COM6); only one connector at a time may be used.
RS485COM6	The COM6 RS232 will be selectable in future versions
	of E2.

Table 4-1- Modem/Com Card Part Numbers and Descriptions

4.3.3Plug-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 3-18on 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 3-18on page 3-6). When finished, restore power to the E2.

4.3.4Plug-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.

4-4 • E2 RX/BX/CX I&O Manual 026-1610 Rev 13 14-SEP-2011