3Com 32x, 52x manual 2Serial Connector Cabling Information

Page 17

Cabling the Connectors

1-7

Cabling the Serial Connectors

The serial connectors provide the following options:

The UNIVERSAL connector can be converted to a V.35, V.36, X.21, RS-449, or RS-232 connector.

All serial connectors can function in either DTE or DCE-like mode, which allows you to connect a serial connector to either a CSU/DSU device or modem (DTE mode), or to an IBM cluster controller (DCE-like mode). A connection to an IBM cluster controller must be made using a permanent leased line only. You can operate the serial connectors in any combination of DTE and DCE-like modes.

The cables you use determine the serial connector function. Table 1-2 lists the types of devices available for serial connections, cable options for connection to each device, and if the cable is sold by 3Com. Cables used for IBM cluster controller connectivity (DCE-like mode) are referred to as direct connect cables.

Table 1-2Serial Connector Cabling Information

 

 

 

Connector

 

 

Connection to

Connector*

Mode

Cable Name

Sold by 3Com?

V.35

CSU/DSU device or

V.35

DTE

V.35 to V.35 DCE cable

No. Easily obtained from

modem

 

 

 

cable manufacturer.

 

 

 

 

 

 

V.35

CSU/DSU device or

UNIVERSAL

DTE

V.35 adapter cable

Yes (3C8035).

modem

 

 

 

 

 

 

 

 

 

 

V.35

IBM cluster controller

V.35

DCE-like

V.35 to V.35 direct connect

No. See Chapter 2 for

 

 

 

 

cable

pin assignments.

 

 

 

 

 

 

V.35

IBM cluster controller

UNIVERSAL

DCE-like

UNIVERSAL to V.35 direct

Yes (3C8135).

 

 

 

 

connect cable

 

 

 

 

 

 

 

X.21

CSU/DSU device or

UNIVERSAL

DTE

X.21 adapter cable

Yes (3C8021).

modem

 

 

 

 

 

 

 

 

 

RS-449 or V.36 CSU/DSU

UNIVERSAL

DTE

UNIVERSAL to RS-449/V.36

No. See Chapter 2 for

device or modem

 

 

DCE cable

pin assignments.

 

 

 

 

 

RS-449 or V.36 IBM cluster

UNIVERSAL

DCE-like

UNIVERSAL to RS-449/V.36

No. See Chapter 2 for

controller

 

 

direct connect cable

pin assignments.

 

 

 

 

 

RS-232 CSU/DSU device or

UNIVERSAL

DTE

UNIVERSAL to RS-232 DCE

Yes (3C8023).

modem

 

 

cable

 

 

 

 

 

 

RS-232 CSU/DSU device or

RS-232

DTE

RS-232 to RS-232 DCE cable

No. Easily obtained from

modem

 

 

 

cable manufacturer.

 

 

 

 

 

RS-232 IBM cluster controller

UNIVERSAL

DCE-like

UNIVERSAL to RS-232 direct

Yes (3C8123).

 

 

 

 

connect cable

 

 

 

 

 

 

RS-232 IBM cluster controller

RS-232

DCE-like

RS-232 to RS-232 direct

Yes (3C8132).

 

 

 

 

connect cable

 

*If you cable the UNIVERSAL connector, you need to perform some software configuration. For more information, refer to the software guide.

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Contents Models 32x Electromagnetic Compatibility Information Avis Canadien CE Notice Contents Removing the Cover Installing Memory Reinstalling the Cover Connectors and CablesIndex 3COM Corporation Limited Warranty Viii Icon Alerts you to About this GuideConventions Chapter about this Guide Required Installing the HardwareEquipment 1Equipment Received and Equipment NeededFor more information on cables, refer to Chapter Mounting 1Rack-Mount Kit Contents4CHAPTER 1 Installing the Hardware Cabling Cabling the Isdn Connector Model Cabling the LAN Connector Models 323, 327,Connector Connection to Mode Cable Name Sold by 3Com? 2Serial Connector Cabling InformationModels 32x DCE-like mode Models 32x DTE modeModels 52x DCE-like mode Models 52x DTE modeSystem Redundant PowerAttaching a Characteristic Setting Connecting a PCTerminal, or Modem12CHAPTER 1 Installing the Hardware 1SuperStack II NETBuilder Model Features Model FeaturesOverview Chassis PanelsModel PanelsConnectors Interrupt SwitchLEDs Hardware39-pin to 9-pin PC Cable Null Modem-Type PC Cable49-pin to 25-pin Terminal Cable Null Modem-Type Terminal CableModem Cable UTP Connector and Cable2UTP Cable Types, MAUs, and Emissions Compliance STP Connector and Cable3STP Cable Types, MAUs, and Emissions Compliance Shielded4Auxiliary Pin Use Cabling Standards5Maximum Workstations on a Token Ring Network Pinout STP Maximum Current6V.35 Straight-Through Cable To V.35 DCE Cable7V.35 to V.35 Direct-Connect Cable To V.35 Direct Connect Cable8UNIVERSAL to V.35 Adapter Cable Universal to V.35 Adapter Cable9UNIVERSAL to V.35 Direct Connect Cable Universal to V.35 Direct Connect Cable10UNIVERSAL to V.36 Adapter Cable Universal to RS-449/V.36 DCE Cable11UNIVERSAL to RS-449/V.36 Direct-Connect Cable Universal to RS-449/V.36 Direct Connect Cable12UNIVERSAL to RS-232 DCE Cable Universal to RS-232 DCE CableUniversal to RS-232 Direct-Connect Cable Universal to RS-232 Direct Connect Cable14RS-232 Straight-Through Cable RS-232 to RS-232 DCE Cable15RS-232 to RS-232 Direct-Connect Cable RS-232 to RS-232 Direct Connect Cable16UNIVERSAL to X.21 Adapter Cable Universal to X.21 Adapter Cable6ISDN Cable Pinouts Pin No Function SignalRelative Humidity Physical SpecificationsAltitude 22CHAPTER 2 Overview Removing the Cover Upgrading MemoryDip switches should all be in the down position Reinstalling Cover 4CHAPTER 3 Upgrading Memory System /Fault TroubleshootingPhase TroubleshootingDuring the Test During the LoadLED Meanings Associated Model No Connector3LED Meanings Call your network supplier for assistanceConnection Symptom Cause and ActionToken Ring This is Only station 0001 0101 Canonical least significant bit firstProvisioning Your Isdn Line American Isdn BRI ServicesAT&T 5ESS NI1 Isdn Information Sheet 3Com SuperStack II Bridge/RouterAT&T 5ESS North American Switch Provisioning TablesRequired Information Table A-1Ordering Isdn Service for an AT&T 5ESS SwitchDN must be set as follows Parameter Setting Required Information SpecificationTable A-3Ordering Isdn Service for a DMS 100 Switch SPIDs Table A-4Ordering Isdn Service for a Siemens Ewsd Switch8APPENDIX a Provisioning Your Isdn Line Ordering German Isdn BRI Services10APPENDIX a Provisioning Your Isdn Line Technical Support ServiceOnline Technical 3Com Bulletin BoardAccess by Digital Modem Access by Analog Modem408 654 Country Data Rate Telephone NumberCountry Number Telephone3Com Benelux B.V Country Telephone Number Fax Number Page Numerics IndexSTP UTP Index 3Com Corporation Limited Warranty Limitation of Liability