Appendix B Cable Specifications

Frame Relay Cabling

Table B-8 X.21 Signals

Signal

Name

 

 

Mode_2

Local connections

 

 

Mode_DCE

Local connections

 

 

Gournd

Shield Ground

 

 

O_TXD/RSC+

Transmit +

 

 

OTXD/RXD-

Transmit -

 

 

O_RTS/CTS+

Control +

 

 

O_RTS/CTS-

Control -

 

 

I_RDX/TXD+

Receive +

 

 

I_RXD/TXD-

Receive -

 

 

ICTS/RTS+

Indication +

 

 

I_CTS/RTS-

Indication -

 

 

I_RXC/TXCE+

Timing +

 

 

I_RXC/TXCE-

Timing -

 

 

GND

CCT Ground

 

 

Table B-9 Cable Part Numbers for MGX-FRSM-HS1/BV

Type of Cable

Far End Connector

Part Number

 

 

 

X.21 DTE

male

72-1440-01

 

 

 

X.21 DCE

fremale

72-1427-01

 

 

 

 

V.35

DTE

male (standard)

72-1428-01

 

 

 

 

V.35

DTE

female (atypical)

72-1436-01

 

 

 

 

V.35

DCE

female (standard)

72-1429-01

 

 

 

 

V.35

DCE

male (atypical)

72-1437-01

 

 

 

 

V.35

DTE-DCE

 

72-1441-01

 

 

 

Straight-through

 

72-1478-01

 

 

 

Loopback plug

 

72-1479-01

 

 

 

 

HSSI Port Connectors

The High Speed Serial Interface (HSSI) port connects through a female SCSI-II connector This connector accords with ANSI/TIA/EIA-613. See Table B-10for the pinouts.

Table B-10 Pinouts for SCSI-II Connector

 

 

Pin No.

Name

Signal Function

Polarity

Signal Source

 

 

 

 

 

 

 

 

11

SD

Send Data

+

DTE

 

 

 

 

 

 

 

 

 

 

36

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco MGX 8230 Edge Concentrator Installation and Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

 

 

 

 

B-5

 

 

 

 

 

 

 

Page 267
Image 267
Cisco Systems MGX 8230 manual Hssi Port Connectors, Signal Name, Pin No Name Signal Function Polarity Signal Source