Comtech EF Data CDM-710L Especificaciones descargar pdf (Pagina 128)

CRS-170A L-Band 1:1 Redundancy Switch MN/CRS170A.IOM

Cables and Connections Revision 13

5–58

5.9.1.1 Modem-to-Switch Control Interface Connection

Excluding the modems, the KT/12551 CRS-170A L-Band 1:1 Redundancy Kit

(Sect.

5.2.2) provides all components shown in Figure 5-46.

2) When you connect the Control Interface cables between the CRS-170A and the

modems, make sure that you securely fasten the screw locks on the Type ‘D’

connectors. This prevents accidental disconnection of the cables, particularly

when you are removing and replacing a standby unit.

CEFD Part No.

Qty

Description

CA/WR12135-1

See Notes

Control Cable – Universal, DB-9M, 4’

FIGURE NOTES:

1) To provide user access to the modem “Fault Summary Relay,” Control ‘Y’ Cable

(CEFD P/N CA/WR13011-4), sold separately, is available for use in place of the

CA/WR12135-1 Control Cable.

2) The CA/WR12135-1 Control Cable will mute the Offline modem’s Tx IF. If this is

not desired, then an alternate Control Cable (CEFD P/N CA-0000187), sold

separately, is available for use instead.

Figure 5-46. CDM-710 Modem-to-Switch Control Connections

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Comtech EF Data CDM-710L Especificaciones Pagina 128