Parameter Description for LINE(nnnnn) - BSC

AUTODISC=Yes|No
Specifies whether (Yes) or not (No) this line is to be disconnected automatically from a terminal when the local modem disconnects.
Note: If you use AUTODISC=Yes for a leased, dedicated line, you can cause serious performance impact without receiving the $HASP094 I/O ERROR message. This may also occur if a modem is disconnected or powered-off during a session or a line started with a modem disconnected or powered off.

Modification: $T LINE(nnnnn) operator command.

CODE=A|B
Specifies the code for this line.
A
Specifies code A for this line; code A refers to the first code in a BSC adapter that has the dual code feature.
B
Specifies code B for this line. Code B refers to the second code in a BSC adapter that has the dual code features. If the dual code feature is not present, B should not be specified. See 2701 Data Adapter Component Description for information about BSC CCWs and sense codes.

Modification: $T LINE(nnnnn) operator command.

COMPRESS= Yes|No
For RJE workstations only, specifies whether (Yes) or not (No) BSC hardware terminals attached to this line can utilize data compression. If you specify NO, it overrides the specification of the COMPRESS= parameter on the RJE workstation (RMT(nnnnn) ) initialization statement for any workstation that might use this line and any remote device statement. Compression compatibility is standard for BSC multileaving workstations.

If you specify COMPRESS=Yes, the specification of the COMPRESS= parameter on the RMT(nnnnn) and the COMP parameter on the remote device (Rnnnnn.xxx) statements is allowed to take effect. IF RMT(nnnnn) specifies COMPRESS=No, or Rnnnnn.xxx specifies NOCOMP, no compression will take place.

This parameter defaults to Yes, which specifies that the line allows data compression.

Modification: $T LINE(nnnnn) operator command.

CONNECT= (Yes|No|DEFAULT,interval)
Specifies whether an NJE connection should be automatically attempted for this line. If DEFAULT is specified, processing defers to the CONNECT=(YES|NO) value that is specified on the associated NODE statement. The interval is the approximate time (in minutes) between attempted connections. The valid range for interval is 0 to 1440. A value of 0 indicates that the default interval (from NJEDEF CONNECT=) should be used. The default CONNECT value is DEFAULT, and the default interval is 0.
Discon={NOI|INTERRUPT|Q|QUIESCE}
Specifies whether the line is to be disconnected immediately (I) or after it completes its current activity (Q).
I or INTERRUPT
A sign-off record is sent to the attached multi-leaving remote workstation or to the connected NJE node.
Q or QUIESCE
The disconnection occurs as though the remote operator or NJE node had signed off. This is for active lines only.
Note: You can change this parameter only if the specified line is not currently drained.
DUPLEX=HALF|FULL
Specifies whether this is a full-duplex (FULL) or half-duplex (HALF) line.

Modification: $T LINE(nnnnn) operator command.

INTERFAC=A|B
A specifies interface A for this line; interface A refers to the first interface in a BSC adapter that has the dual-communications interface feature.

B specifies interface B for this line; interface B refers to the second interface in a BSC adapter that has the dual-communications interface feature. If the adapter for this line does not have the dual-communications interface feature, B should not be specified.

Modification: $T LINE(nnnnn) operator command.

JRNUM=n|DEFAULT
Specifies the number (0-7) of network job receivers to be associated with this NJE line. The value of n is an integer that specifies the maximum number of input job streams allowed to be concurrently active on this line. This specification should match the value of JTNUM= for this line on other nodes with which this node is to communicate directly. The sum of the values of JRNUM= and SRNUM= for this line must not exceed 8, or the statement is ignored.

This value overrides the default global value set by the JRNUM= parameter of the NJEDEF statement. If this value is omitted or set to DEFAULT, the value is taken from the JRNUM= parameter of NJEDEF. If you omit or use the DEFAULT where the sum of JRNUM= and SRNUM= exceeds 8, JRNUM= is reduced so that the sum equals 8.

Default: Value of the JRNUM parameter of NJEDEF.

Modification: Operator command.

JTNUM=n|DEFAULT
Specifies the number (0-7) of network job transmitters to be associated with this NJE line. The value of n is an integer that specifies the maximum number of output job streams allowed to be concurrently active on this line. You should not change this value unless it is known that a particular user has jobs with extremely large amounts of input to be transmitted and other short jobs that must be transmitted concurrently. If there are not enough receivers on the receiving node to receive jobs over the line, excess transmitters drain automatically. The sum of the values JTNUM and STNUM for this line must not exceed 8, or the statement is ignored.

This value overrides the default global value set by the JTNUM= parameter of the NJEDEF statement. If this value is omitted or set to DEFAULT, the value is taken from the JTNUM= parameter of NJEDEF. If you omit or use the DEFAULT where the sum of JTNUM and STNUM exceeds 8, JTNUM= is reduced so that the sum equals 8.

Default: Value of the JTNUM= parameter of NJEDEF.

Modification: Operator command.

LINECCHR=USASCII|EBCDIC
USASCII specifies that the BSC adapter is configured for ASCII line-control characters. When USASCII is specified, this line must be used with 2770, 2780, or 3780 USASCII terminals. EBCDIC specifies that the BSC adapter is configured for EBCDIC line-control characters.

Modification: $T LINE(nnnnn) operator command.

LOG=Yes|No
Specifies whether (Yes) or not (No) JES2 is to monitor this line for channel-end completions or SNA events. If you specify LOG=Yes, JES2 issues $HASP094 message for every transmission across this BSC line. You should specify LOG=No if your installation performs extensive networking activity.

Modification: $T LINE(nnnnn) operator command.

NODE=node
Specifies the NJE node name associated with this node. This value determines which node to connect to when a $SN,LINE=xxx command is issued or the line is automatically connected.
Password=xxxxxxxx
Specifies a 1- to 8-character security password JES2 is to use to prevent unauthorized terminal users from using this line. You can use this password in the connection request from RJE workstations.

If you do not specify a password, one does not exist.

Modification: $T LINE(nnnnn) operator command.

REST=nnnnn|0
Specifies an integer between 0 and 2000 which represents the resistance rating of the line as viewed by the installation management and coordinated with other installations. Resistance is an arbitrary value set to indicate a specific line's ability or inability to route work that has “normal” workload requirements and line speed. See z/OS JES2 Initialization and Tuning Guide for details concerning resistance selection.

Modification: $T LINE(nnnnn) operator command.

RESTART= (Yes|No,interval)
Specifies whether (Yes) or not (No) this line will be restarted if it is drained. The interval is the approximate time (in minutes) between attempted restarts. The valid range for interval is 0 to 1440. A value of 0 indicates that the default interval (from NJEDEF CONNECT=) should be used. The default RESTART value is No, and the default interval value is 0.
SPEED=HIGH|LOW
Specifies whether this is a high-speed (greater than 9600 bits per second) or low-speed line.
Note: This parameter is only applicable to 360/20 submodels 2 and 4.

Modification: $T LINE(nnnnn) operator command.

SRNUM=n|DEFAULT
Specifies the number (0-7) of network SYSOUT receivers to be associated with this NJE line. The value of n is an integer which specifies the maximum number of SYSOUT receiver streams allowed to be concurrently active on this line. This specification should match the value of STNUM= for this line on the other nodes with which this member is to communicate directly. The sum of the values JRNUM= and SRNUM= for this line must not exceed 8, or the statement is ignored. This value overrides the default global value set by the SRNUM= parameter of the NJEDEF statement. If this value is omitted or set to DEFAULT, the value is taken from the SRNUM= parameter of NJEDEF. If you omit or use the DEFAULT where the sum of SRNUM= and JRNUM= exceeds 8, SRNUM= is reduced so that the sum equals 8.

Default: Value of the SRNUM= parameter of NJEDEF.

Modification: Operator command.

START=Yes|No
Specifies whether (Yes) or not (No) this line, if it is ready, will be started automatically when JES2 starts processing. The default START value is No.
STNUM=n|DEFAULT
Specifies the number (0-7) of network SYSOUT transmitters which will be associated with this NJE line. The value of n is an integer which specifies the maximum number of SYSOUT transmitter streams allowed to be concurrently active on this line. If there are not enough receivers on the receiving node to receive SYSOUT data over the line, excess transmitters drain automatically. The sum of the values JTNUM= and STNUM= for this line must not exceed 8, or the statement is ignored.

This value overrides the default global value set by the STNUM= parameter of the NJEDEF statement. If this value is omitted or set to DEFAULT, the value is taken from the STNUM= parameter of NJEDEF. If you omit or use the DEFAULT where the sum of STNUM= and JTNUM= exceeds 8, STNUM value is reduced so that the sum equals 8.

Default: Value of the STNUM= parameter of NJEDEF.

Modification: Operator command.

TRaceio=Yes|No
Specifies whether (Yes) or not (No) trace ID 4 will trace channel-end completions for BSC lines on VTAM® lines and JES2/VTAM interface events, and trace IDs 21 through 24 will trace network control connect (NCC) records.

Modification: $T LINE(nnnnn) operator command.

TRANSPAR=Yes|No
Specifies whether (Yes) or not (No) the text transparency feature of the BSC adapter is present on this line. The text transparency feature allow JES2 to send all 256 characters in a data stream without the data being interpreted as control characters. You must specify Yes for NJE lines.

TRANSPAR=No is valid only for EP links generated to operate as a D/T2701 without the transparency feature. For device types which require the transparency feature, such as 2703 and CTC, specifying TRANSPAR=NO will have no effect and TRANSPAR=YES will be forced at initialization.

Modification: $T LINE(nnnnn) operator command.

UNIT=hhhh | /hhhh
UNIT can be specified as one of the following:
  • A 3- or 4-digit hexadecimal device number. Device numbers can be specified in any of the following formats: 
      UNIT=hhh
  UNIT=hhhh
  UNIT=/hhh
  UNIT=/hhhh
    where hhh and hhhh represent the device numbers.

    A slash (/) can optionally precede the device number (for compatibility with other initialization statements that require a slash to denote a 4-digit device number).

  • For RJE BSC lines, specify the device number as the same address that you specified for the subchannel address defined for the communication controller.
  • NJE protocols support an ESCON Basic Mode CTC (defined to the hardware configuration dialog as BCTC) and a 3088 CTC but do not support an ESCON CTC (defined to the hardware as SCTC).

The same unit address may be specified for more than one line to allow use of different interfaces or codes available in a single BSC adapter. JES2 will allow only one of these lines to be started by the operator at any one time.

If UNIT= is specified, a BSC adapter that was previously offline during JES2 initialization will remain accessible.

You can specify line availability in the following three ways:

  1. Make the line available to any RJE workstation (dial up)
  2. Make the line available to two or more RJE workstations that must contend for use of the line
  3. Make the line available only to a single RJE workstation

The relationship between lines and RJE workstations is controlled by the LINE(nnnnn) and RMT(nnnnn) initialization statements.

If non-SNA NJE lines are attached to a 3705, the 3705 must have been generated to emulate a 2701 or a 2703. During system installation, use hardware configuration definition (HCD) to define the attached NJE lines as follows:
  • On the ‘Primary Task Selection’ panel, select ‘1. Define, modify, or view configuration’. On the resulting panel, select ‘5. I/O devices’
  • On the ‘Add Device’ panel, specify the device type as BSC1.
  • On the ‘Define Parameter / Feature’ panel, specify the TCU parameter as 2701
See z/OS HCD User's Guide for a complete list of the steps involved in defining a device.

If not specified, JES2 does not assign an available BSC line; instead, a BSC line can be dynamically assigned using a $T LINE(nnnnn) command.

Modification: $T LINE operator command.