Honeywell CIU 888 - Option Slots; USB Ports

Introduction
Part No.: 4417591_Rev10 Introduction Manual
CIU 888 1 - 11
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1.5.4 Option slots
The CIU 888 has six option slots, as shown in FIGURE 1-10.
FIGURE 1-10 CIU 888: Option slots
The options slots support a wide range of connectivity possibilities,
including:
 Gauging instruments on bulk storage tanks connecting over BPM or
serial (RS-232/RS-485) field lines
 Gauging instruments on bulk storage tanks connecting over TRL/2
(Emerson Rex 2160)
 Host systems connecting over serial (RS-232/RS-485) field lines
 Downlink CIU (i.e. CIU 858, SmartLink) with gauges, connecting
over serial (RS-232/RS-485) field lines
 Honeywell/third party Modbus field devices connecting over serial
(RS-232/RS-485) field lines
 HART, Modbus or other protocol field devices connected to CIU 888
Via Modbus data concentrator and communicating over serial (RS-
232/RS-485) field lines
 Honeywell/third party TRL/2 Modbus field devices connecting over
TRL/2 field lines
1.5.5 USB ports
The CIU 888 has three USB ports as shown in FIGURE 1-11 and
FIGURE 1-12. The USB ports enable connection of data storage
devices, such as USB flash drives and pen drives, in order to install
firmware upgrades and CIU 888 license updates.
NOTE: Refer to the Firmware Upgrade Manual CIU 888 (Part No. 4417596) for more
information.