Comtest-networks MTAS-192 METALLIC TEST ACCESS SYSTEM Manual de usuario descargar pdf (Pagina 37)

CT-IG-MTAS192-2008-v1_8.doc

Comtest Networks

MTAS-192

June 2006 Installation Guide

NOTE: See Appendix A, section 0: “Test Access Link (TAL) Bus Extender” for cable

pinouts.

NOTE: Ensure all 8-wire CAT5 shielded cables are properly terminated to earth ground

using a shielded RJ-45 plug.

4.2.7.1 Test Access Link (TAL) Bus Extender

Step 1. Using 8-wire, CAT5 cable (see Appendix A, section 0: “Test Access Link (TAL)

Bus Extender” for pinouts/cable assembly), connect the test head to the master

MTAS shelf via the female TAPs/DATA 2 RJ-45 jack .

Step 2. Connect the female DATA 1 RJ-45 jack on the MTAS backplane to the female

TAPs/DATA 2 jack on the next (slave) MTAS shelf.

Step 3. Repeat for all shelves in the daisy-chain.

Figure 30: Daisy Chaining using TAL Bus Extenders (One Master, Two Slave Shelves)

4.2.7.2 Inter-Shelf Communications Link (ISCL) Bus Extender

Step 4. Using shielded, 8-wire CAT 5 Ethernet cable (see Appendix A, section 0:

“Inter-Shelf Communications Link (ISCL) Cabling” for pinouts and cable

assembly), connect COMM 1 on the master MTAS shelf to COMM 2 on the

next slave shelf.

Step 5. Repeat for all shelves in the daisy-chain.

To test

head

Master Shelf

(Chassis ID=0)

Slave Shelf

(Unique Chassis

ID=1-11)

Slave Shelf

(Unique Chassis

ID=1-11)

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Comtest-networks MTAS-192 METALLIC TEST ACCESS SYSTEM Manual de usuario Pagina 37