You use the GROUP, LINE, PU, and LU definition statements in an NCP subarea node to define a peripheral node attached through a nonswitched SDLC connection. The primary VTAM-only operands that are used for this definition are associated with:

• Logon session parameters (DLOGMOD, MODETAB)
• Automatic logon usage (LOGAPPL)
• Unformatted session services facilities (USSTAB, SSCPFM)
• Model terminal support (MDLTAB, MDLENT, ASLTAB, ASLENT)
• Interpret table processing (LOGTAB)
• Pacing control (VPACING)
• Span of control (SPAN)

Following is a sample coding of a nonswitched SDLC connection between an NCP and a peripheral node:

G5S3276  GROUP ANS=CONTINUE,       ANS ACTION TOWARD PU
               DIAL=NO,            NONSWITCHED SDLC LINK
               LNCTL=SDLC,         LINE CONTROL DISCIPLINE
               MAXDATA=265,        MAX BYTES PU CAN RCV
               PACING=1,           NCP-LU PACING OPTIONS
               SPEED=9600,         9600bps LINE SPEED
               ⋮
               DLOGMOD=T3278M2,    (V) DEFAULT LOGMODE ENTRY
               LOGTAB=LOGONTAB,    (V) LOGON INTERPRET TABLE
               MODETAB=MT3274C,    (V) LOG MODE TABLE NAME
               SSCPFM=USSSCS,      (V) CHAR-CODED MSGS TO SSCP
               USSTAB=USS3270A,    (V) UNFMT SRVCS TABLE NAME
               VPACING=0           (V) VTAM-NCP PACING VALUE
*
L5032    LINE  ADDRESS=(32,HALF),  LINE ADDRESS — HALF DUPLEX
               ⋮
               ISTATUS=ACTIVE      (V) VTAM STATUS
*
         SERVICE ORDER=(C5032A)    SERVICE ORDER TABLE
*
P5032A   PU    ADDR=C1,            CLUSTER CONTROLLER ADDRESS
               PUTYPE=2,           PHYSICAL UNIT TYPE
               ⋮
               ISTATUS=ACTIVE      (V) VTAM STATUS
*
LU5032A1 LU    LOCADDR=2,
               ⋮
               ISTATUS=ACTIVE