Specifications

Control Interface Module, Continued
• Reset Switch – This pushbutton switch initiates a hard reset of
the CIM (same as initial power up).
CIMBase Board
Connections
(continued)
• CIM Display Backlight – Power/Control connector for the
backlight of the color display.
• I
2
C Bus – The I
2
C connectors are shown on the left side of figure
2-4. Two I
2
C buses are equipped on the CIM. These are labeled
I
2
C Bus A and I
2
C Bus B.
o I
2
C Bus A includes the two connectors on the top as
shown in figure 2-4.
o I
2
C Bus B includes the three I
2
C connectors on the
bottom figure 2-4. I
2
C Bus B is intended for use to
support extra hardware such as Siemens Smart
Sampling System Initiative (SSSI) components.
• Digital Outputs - The CIM has two on-board Digital Outputs
(DOs) configured. The pin layout of this connector is printed on
the CIMBase board as shown below.
Figure 2-5: CIM CO Connector Pin Layout
• Serial Ports 1 and 2 – The SYSCON2 is equipped with two serial
ports, each ground isolated. Serial Port 1 is configurable via the
Maxum software for RS-232 or RS-485. Serial Port 2 is hard-
coded for RS-485. Both ports support RTS/CTS hardware
handshake. Maximum supported data rate on the serial ports is
115200 bits/second.
Mixing RS-485 and RS-232 cabling/devices could possibly damage a
serial device. Because of this, always verify the port settings in software
prior to plugging any cable into CIM serial port 1, and do not connect an
RS-232 cable/device to CIM serial port 2.
CAUTION
A5E31405710001 2-7