User's Manual

Guard Interval

GUARD INTERVAL

1/32 1/16 1/8 1/4

The Guard Interval corresponds to the idle time that exists between each COFDM symbols, in order to avoid inter-symbol

interference in a Multipath environment. The Guard Interval helps prevent the receiver from being affected by signal echo

interference by allowing time for echoes to settle before the active symbol is sent. Guard Interval is expressed as the ratio of the

idle time divided by the useful part of the COFDM symbol.

Code Rate

CODE RATE

1/2 2/3 3/4 5/6 7/8

The Code Rate represents the ratio of signal to error correction. The Code Rate is related to the quantity of redundancy bits that are

added for error correction. The code rate is expressed as the ratio of the useful bitrate divided by the total bitrate (including

redundancy bits).

Channel Bandwidth

8 7 6 Mhz

The CCII is capable of 3 channel bandwidth settings.

Serial Address

For the typical application, the CCII is controlled by the Handheld Controller (BMS P/N 8014154000) and there is no reason to

configure the serial address. However, It is possible to control the CCII with another external device via the DB15 connector. In that

case, the serial address will need to be configured to match the device used.

When used in an BMS HCII system, the CCII Serial Address must be set to 5

Encryption Type

A B

CCII uses a proprietary encryption scheme that will only work with BMS recieivers. The Encryption Type only matters when

Encryption is in use. To use Encryption, a PIN must be set (see section 0). This PIN must match the Receiver PIN in order for the

signal to be descrambled. Select the Encryption type based on the application. Type A is recommended encryption type and can

be used for both Telecom or RF broadcast applications. Type B is for RF broadcast only under certain circumstances.