8 Communications
Access the Connection Ports
112 Agilent 990 Micro GC User Manual
Access the Connection Ports
The external device connection ports on the 990 Micro GC are located in the top assembly. The
connectors at the rear of the top assembly, from left to right, are RS-232 (COM-1), USB,
Ethernet (LAN), and multiconnector (for digital and analog I/O). See Figure 45. For details of
COM 1, see Table 27 and Figure 48 on page 113.
The side of the top assembly features the LCD cable connector and a breakaway which conceals
the COM 2 and COM 3 connection ports. See Figure 46. For details of COM 2 and COM 3, see
Table 28 and Figure 49 on page 114.
The front of the top assembly features two USB connectors. See Figure 47.
Figure 45. Top assembly rear connection ports
Figure 46. Top assembly LCD cable connector and port connection for COM 2 and COM 3
Figure 47. Top assembly front USB ports
USBRS-232
(COM-1)
Ethernet
(LAN)
Digital and Analog I/O
COM 2 and COM 3 ports
(inside the breakaway)
LCD cable
connector