30 NFS-320/E/C Installation Manual — P/N 52745:M2 7/1/14Installation Installing EIA-485 DevicesNOTE: In order to meet UL wiring requirements, please install grounding straps as shown below.3.9.1 Labeling Modules and CircuitsAt the time of installation, each nonpower-limited circuit connected to ACM-8R, and LDM-R32modules must be identified in the space provided on the cabinet door label when connected to anon-power-limited source of power.The label lists all compatible power-limited modules and circuits; also see Figure 2.2 on page 13.The LDM-R32 is power-limited only when connected to power-limited sources. When connectedto a non-power-limited source, the power-limited marking must be removed.3.10 Installing EIA-485 DevicesFigure 3.14 provides a closer view of the EIA-485 connections provided on TB11. Because specificconnections can vary by the type of device being connected, refer to the product installation manualfor details.Figure 3.14 EIA-485 Connections3.11 Installing Remote Printers and/or CRT3.11.1 Custom Cable FabricationA custom cable needs to be fabricated to connect the PRN Printer or the CRT-2 Monitor to thesystem. Length of the cable will vary with each installation, but should not exceed a maximumlength of 20 feet (6.1 m). Printer must be installed in the same room as the panel, and the cable beinstalled in conduit. Construct cable as follows:1. Using overall foil/braided-shield twisted-pair cable, properly connect one end to the DB-25Connector using the wiring specifications shown in the table below. (Custom cable kitP/N 90106 is provided.)cpu2-640tb200.wmf
