The 64-Port asynchronous controller subsystem provides attachment for 64 asynchronous communication ports from a single I/O slot in the system unit. The subsystem has connectors to attach up to four external 16-port asynchronous concentrators thus giving a total of 64 asynchronous ports.
A single concentrator provides 16 connections for EIA 232 asynchronous devices. Although application dependent, data rates up to 38.4Kbps per port are supported.
A 7.6 m (25 ft) controller attachment cable is included with each concentrator. Cabling distances of up to 762 m (2500 ft) between controller and concentrator are supported but must be supplied by the customer. EIA 232 cabling of up to 61 m (200 ft) between concentrator and device is also supported.
The 16-Port asynchronous concentrator uses RJ-45 connectors for device attachment. The RJ-45 to DB25 converter cable plugs in to the RJ-45 connector and provides a 25-pin D-shell connector for device attachment.
The 64-port asynchronous adapter hardware is no longer available as a supported product. However, if you purchased one of the models (with a 64-port adapter) specified in the following chart before November 30, 1993, the adapter is still supported.
If you upgraded from the models previously specified to one of the models in the following chart, your 64-port adapter is still supported.
TxD, RxD, DTR, CTS, RTS, and DCD
The following figure illustrates the 64-port asynchronous controller with one of four concentrator boxes that can be attached to any one of the controller connectors. The position of the adapter determines the controller connector numbering:
A choice of cables can be attached to any of 16 concentrator box ports. The ports on the concentrator box are labeled 0 through 15 and accept RJ-45 connectors. In order to make the necessary connections to this adapter, the system administrator needs to know the devices and persons assigned to each port.
This procedure provides a list of the 64-port asynchronous adapters that are defined in the customized database. A defined device can be either available (configured) or unavailable to the operating system. To obtain a list of defined 64-port adapters, use the System Management Interface Tool (SMIT) to build the lsdev command, or issue the lsdev command directly from the command line. The list obtained contains the name of the defined 64-port asynchronous adapters, their status (available or defined), location code (which identifies the 64-port asynchronous adapter physical device), and a device description.
Note: The status of a defined and configured device is available. The status of a device that is defined but not configured is defined.
Enter the lsdev command at the command line as follows:
See the lsdev command for a detailed description and optional flags.
