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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Appendix
Illustrated Cable Guide
MGX-SCSI2-2HSSI/B Port Connectors
The High-Speed Serial Interface (HSSI) port connects through a female SCSI-II connector This
connector complies with specifications in ANSI/TIA/EIA-613. See Table B-29 for the SCSI-II
connector pin assignments.
Illustrated Cable Guide
This section shows which cables are used for Cisco MGX 8850 (PXM1E/PXM45), MGX 8850/B,
MGX 8950, MGX 8830, MGX 8830/B and MGX 8880 chassis and cards. Cables in this section are listed
alphabetically.
Table B-29 Pin Assignments for the SCSI-II Connector
Pin No. Name Signal Function Polarity Signal Source
11 SD Send Data Positive DTE
36 Negative
4 RD Receive Data Positive DCE
29 Negative
6STSend TimingPositive
31 Negative
2 RT Receive Timing Positive
27 Negative
6 TT Terminal Timing Positive DCE
13 Negative
3 CA DCE Available Positive DCE
28 Negative
8 TA DTE Available Positive DTE
33 Negative
10 LA Loop Ckt A Positive DTE
35 Negative
12 LB Loop Ckt B Positive DTE
37 Negative
5 LC Loop Ckt C Positive DCE
30 Negative
SG Signal Ground