Clear-Com uses the ETSI DECT Sync signal. Below this text is an excerpt from the spec.
This Explanation of DECT sync can be found here Matrix: E-Que dect sync connections on multiple frames
The DECT sync signal appears across pins 3 and 6 of the DECT Ref OutRJ-45 E1 / Antennas RJ5 connector on the rear of the E-Que card
The FSII (E1) Antenna uses all 8 wires of the CAT5 cable on an E1 pin out when wired back to a splitter, base station or directly to an E-Que . Pin 3 is + card.
E1 / Antenna RJ45 | Function |
|---|---|
Pin 1 | TX Tip +ve |
Pin 2 | TX Ring –ve |
Pin 3 | DECT Sync +ve (For Cellcom/ FreeSpeak connection to Antenna) |
Pin 4 | RX Tip +ve |
Pin 5 | RX Ring –ve |
Pin 6 | DECT Sync –ve |
Pin 7 | GND |
Pin 8 | +12V (From base or splitter – No power from E-Que rear) |
It’s a 100 HZ pulse train with the positive pulses about 880 µs wide, and every 16th pulse is 2640 µs , three times as wide. This
This same signal also appears across pins 3 and 6 of the transceiver RJ-45. On a FSII base, the same signal appears across pins 1 and 2of the Synch Out RJ-45. on the dedicated DECT IN / OUT RJ45 connectors on the EQUE card / FSII Base . The dedicated DECT Sync In / OUT connectors allows the user to pass Dect sync to other stand-alone DECT matrix / basestation or 3rd party devises who maybe sharing the same RF space
The pin out for the dedicated DECT Sync IN / OUT RJ45 is
DECT Sync IN Connector | |
|---|---|
Pin 1 | DECT_SYNC_IN- |
Pin 2 | DECT_SYNC_IN+ |
Pin 3 | 8KHZ_IN+ |
Pin 4 | |
Pin 5 | |
Pin 6 | 8KHZ_IN- |
Pin 7 | |
Pin 8 |
DECT Sync OUT Connector | |
|---|---|
Pin 1 | 8KHZ_OUT+ |
Pin 2 | 8KHZ_OUT- |
Pin 3 | DECT_SYNC_OUT+ |
Pin 4 | |
Pin 5 | |
Pin 6 | DECT_SYNC_OUT- |
Pin 7 | |
Pin 8 |
B.2.1 Synchronization signal
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