ZoneZoneSYSTEM CONNECTIONVCC-X Operator Interface SD4Modular Service Tool SDModular Service Tool SDThe OE391-12 Modular Service Tool is a system operator interfacethat provides a direct link to enable the system operator to view thestatus, configure, and adjust the setpoints of the VCC-X, VBC-X,VCM, VCM-X, VCM-X E-BUS, RNE, SA E-BUS, VAV/CAV, MUAII, or VAV/Zone Controller on the control system communicationsloop. However, this manual only applies to VCC-X and VAV/ZoneControllers. See note in the inside front cover for the list of manualsthat pertain to other controllers.The Modular Service Tool is housed in an attractive black plasticenclosure. The display area is covered with a clear plastic bezel forprotection of the display screen. The Modular Service Tool has a4-line-by-20-character display panel with adjustable contrast controland a 27-key membrane keypad for data selection and entry. Allkeypad operations are simple and straight forward, utilizing non-cryptic plain English language messages. Menu-driven programmingallows for easy setup and operation without the need for specializedtraining. The Modular Service Tool is supplied with a program-mable 4 Gigabyte SD memory card, (4) AA 1.5 V batteries, a wallmount, a DC power supply, a mini-Din communication cable, andan E-BUS communication cable. The mini-Din cable allows youto connect the Modular Service Tool to any Orion controller whichhas a mini-Din connector socket for programming, monitoring, andtroubleshooting purposes.The Modular Service Tool is also equipped with an EBC E-BUSport and an RS-485 three conductor terminal block port. The E-BUS port and included E-BUS cable are used for updating E-BUSModule software (described in Appendix C). The RS-485 port isused for hard-wiring to older controllers that do not have a mini-DINconnector socket.The Modular Service Tool is designed to be hand-carried. Its rug-ged plastic housing provides superior protection for the electroniccomponents housed inside. The Modular Service Tool is a top-qualityservice tool that will stand up to the demands of the typical job siteenvironment for many years.Figure 1: Modular Service Tool SD Dimensions