ADC Broadband System 267

ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance

DLP-576

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TBOS CHASSIS DAISY-CHAINING

Summary: This procedure provides instructions for daisy-chaining one TBOS link to several chassis configured for compressed TBOS. Up to four chassis can be connected in this manner.

1)Assign a different address in the range 0 through 7 to each of the compressed displays available on the link.

Reference: DLP-549Serial Port Configuration

2)Make sure each chassis in the chain has an MPU installed. Reference: DLP-502MPU Installation and Testing Reference: DLP-519MPU Replacement and Testing

3)Remove the termination strap from the Berg jumper pins labeled "JD 13" from each MPU's PC board except the last one in the chain, as shown in Figure 576-1 .

4)Make connections between chassis: from each Port 1 Tx– to Tx–; from each Port 1 Tx+ to Tx+; from each Port 1 Rx– to Rx–; and from each Port 1 Rx+ to Rx+, as shown in Figure 576-2 .Refer to the Soneplex Broadband System Chassis Installation Manual, listed under Related Publications at the beginning of this manual, for wiring instructions.

Stop! You have completed this procedure.

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