'''\"	OSDD document format (used with mm macros)
.)K \" kill MT macros
.nr%y 2 
.nrP 1 
.nrCl 3 
.nrCp 1 
.nrCs 1 
.nrFp 1 
.nrNp 1 
.nrOf 1 
.nrOc 1 
.tr~
.tc~
.hc^
.ds<1 " (cont'd)
.dsSc 
.dsH1 AAA-BBBBB-CC
.dsH2 n
.dsH3 n
.dsH4 (date)
.dsH5 (rating)
.HM 1 1 A 1 1
.dsHF 3 1 2 2 1 2
.dsLf FIGURES
.nrHt 1
.nrPt 0
.nrHb 5
.nrHs 5
.nrDi 1 
.EF "'Page \\\\nP'''"
.OF "'''Page \\\\nP'"
.am)h
.BS 
.BE
..
.deHX
.if(\\$1=2):(\\$1=4):(\\$1=5) .ds }0
..
.deTP
.if\\n(Cs=0 \{\
.tl'BELL LABORATORIES''\\*(H1'
.if\w'\\*(H2' .tl '''Section \\*(H2'
.if\w'\\*(H3' .tl '''Issue \\*(H3'
.if\\n(Di=0 \{\
.tl'''\\*(H4'
.tl'''\\*(H5' \}
.tl''OPERATIONS SYSTEMS'' \}
.if\\n(Cs=1 \{\
.ie(\\nP%2)=0 \{\
.tl'\\*(H1'''
.tl'Section \\*(H2'''
.tl'Issue \\*(H3''' \}
.el\{\
.tl'''\\*(H1'
.tl'''Section \\*(H2'
.tl'''Issue \\*(H3' \}
.sp3v \}
.if\\n(Cs=0 .nr Cs 1 
..
.deTY
.nf
.{a
.sp3v
.cu1
.tl'CONTENTS''Page No.'
.cu0
.fi
.BS
.if\\n(Di=1 .nr %y 0
.if\\n(%y=2 .[A
.if\\n(%y=1 .[B
.BE
..
.deTc
.br
.BS 1
.if(\\n(%y)&(\\n(:E) .sp 2v
.if\\n(%y=2 .[A
.if\\n(%y=1 .[B
.BE
.di{a
\!.ce 99
.nf
..
.deTd
\!.br
\!.ce0
.fi
.br
.di
.nrCs 0
.TC 7 1 7
..
.de[B
.ce99
PRIVATE
.sp1v
The information contained herein
should not be disclosed to unauthorized
persons.  It is meant solely for use by
authorized Bell System employees.
.ce0
..
.de[A
.ce
NOTICE
.sp1v
.ce2
Not for use or disclosure outside the
Bell System except under written agreement.
..
.de[F
.SK
.rs
.sp30v-\\n(nlu
.ce
\\$5
.ce0
.BS
.)F \\$3 \\$6 \\$4 "\\*(Tt\\*(<1" \\*(Sc
.BE
.nr%c \\$1+1
.if\\$2-\\$1 .[F \\n(%c \\$2 \\$3 \\$4 "\\$5" \\$6
..
.deFg
.SK
.rs
.sp30v-\\n(nlu
.ce
\\$3
.ce0
.br
.dsSc \\$5
.BS
.FG "\\$2" \\*(Sc
.BE
.dsTt \\$2
.ie(\\$1>1)&(\\n(Fp>0) .[F 2 \\$1 Figure \\n(Fg "\\$3" -1
.el\{\
.de[h
.nrP +\\$1
.rm[h
\\..
.if\\$1>1 \{\
.nr%h (\\$1-1)
.am)h
.[h \\n(%h
\\.. \} \}
..
.dePM
.ie!\w'\\$1' .nr %y 0
.el\{\
.if'\\$1'N' .nr %y 2
.if'\\$1'P' .nr %y 1 \}
..
.deBS
.ev1
.)R
.ie0\\$1 \{.rn >D >K
.da>K \}
.el\{\
.nr:E 0
.di>K \}
..
.deBE
.br
.di
.)R
.ev
.nr:U \\n(dnu+\\n(:Eu
.nr:E \\n(dnu
.if(\\n(:Uu+\\n(:Mu)>(\\n(.pu-\\n(nlu-.5v) .SK
.ch)n -(\\n(:Mu+\\n(:Uu)
.nr:o +(\\n(:Uu-\\n(:Tu)
.nr:O +(\\n(:Uu-\\n(:Tu)
.ch)f -\\n(:ou
.nr:m \\n(:Mu+\\n(:Uu
.rn>K >D
.ch>B -(\\n(:Mu+\\n(:Uu-1v) 
.nr:T \\n(:Uu
..