Cim Installation Guidelines; Table 20 - Cim Serial Bit Rate Jumpers J9 - J11 - Keyscan CA250 Series Technical Manual

Serial Bit Rate Jumpers J9 – J11
The CIM has selectable serial bit rates. The jumper settings are outlined in the following table. CAN Bus 1
distances and RS-232 distances govern bit rates. Refer to the BPS Distance Chart. Set CIM jumpers to match
the ACU baud rate.
The Auto-match bit rate functions in the same manner irrespective of which ACU panel it is connected to or if it
is configured as CIM 0 or CIM (n). The CIM will detect and match the RS-232 bit rate with the ACU panel.
As an example, if configuring a system with five panels, set communication bit rates the same on all ACU
control boards, and then allow the CIM unit to auto-match the ACU bit rate. The CIM unit automatically sets
the CAN Bus bit rate to match. Keyscan recommends using the auto-match jumper setting.
Bit Rate/Second
Auto match ACU
9600
19,200
57,600
115,200
230,400
460,800
Reset Jumper J1
The CIM has a reset jumper J1. If the board has been re-configured while powered, momentarily short J1 on
the CIM board to institute the changes.
Momentarily shorting the System Reset J6 jumper on the control board also effects changes to the CIM board
while powered.

CIM Installation Guidelines

The following guidelines offer a general outline for configuring and connecting the CIM units. You may have to
refer to other Keyscan documentation that was included with other components such as a NETCOM2P or
NETCOM6P – Reverse Network to complete the installation depending on how you are configuring the CIM
units.
If using a network connection, ensure that you program the NETCOM device as outlined in the documentation
included with your particular NETCOM unit.
Connect the CIM circuit board according to the communication and power diagrams.
Ensure that the EGND terminal on TB1 of each CIM is connected to an earth ground to protect the circuit board
and the system from high-voltage transients.
Set the jumpers accordingly on the CIM depending on whether it is a global master or slave, it is a terminating
CIM on the CANBUS, or it is CIM 0. Also, ensure the correct communication serial bit rates are correct. Refer to
the CIM Jumper Settings table.
Keyscan Inc. – Technical Guide (PC109x - 07.15)
Table 20 – CIM Serial Bit Rate Jumpers J9 – J11
Jumper #
J9 & J10 & J11
J9 & J10 & J11
J9 & J10 & J11
J9 & J10 & J11
J9 & J10 & J11
N/A
N/A
Jumper Settings
Off = 0 / On = 1
0 0 0
0 0 1
0 1 0
1 0 0
1 0 1
For future use – not supported on PC109x
For future use – not supported on PC109x
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