Emerson E2 Two-Channel and Four- Channel Repeaters, Internal Modem, Mounting Repeaters Overview

sor Board).

Figure 3-17- Modem/Comm Card Mounting in E2

NOTE: Because the modem/communication expansion card and four-channel repeater card share the same mounting platform, they must be used separately.

3.4.1Mounting PC-104 Cards in E2 (Previous Generation Processor Board)

3.4.1.1The Internal Modem

CAUTION: Power down the E2 before plug- ging the modem into the PC-104 slot. Failure to do so can damage the modem and void the

warranty.

The E2’s internal modem mounts in the PC-104 slot located at the top left of the E2 main board (See Figure 3- 18). 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 board, as shown in Figure 3-18. When finished, restore power to the E2.

Figure 3-18- Mounting the Internal Modem Board

3.4.2Two-Channel and Four- Channel Repeaters

3.4.2.1Mounting Repeaters Overview

Repeaters are used to extend the maximum length of a segment of Echelon cable, or to act as a bridge between two devices that are farther apart than the cable’s maxi- mum node-to-node distance. Retail Solutions offers two versions of repeaters for the E2 controller: an external two-way repeater that comes in an enclosure (P/N 832- 1010), and a four-channel repeater mounted in the E2 (P/N 832-4830).

For more information about installing repeaters and routers, please refer to the Repeater and Router Installa- tion and Networking Guide (P/N 026-1605).

3.4.2.2Mounting the Two-Channel

Repeater

The external repeater (P/N 832-1010)is externally mounted within its own enclosure.

3-6 • E2 RX/BX/CX I&O Manual 026-1610 Rev 13 14-SEP-2011