Seed 2_Project 557-20-101_27 10 00_Update Structured Cabling.pdf
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Section 27100.0: Structured Cabling Specification
This is a technical specification section for telecommunications structured cabling systems installation within federal facilities. The specification details requirements for four primary cabling infrastructure components: Computer Room Backbone Structured Cabling, Computer Room Horizontal Structured Cabling, Facility Backbone Structured Cabling, and Facility Horizontal Structured Cabling.
Computer room backbone cabling must connect Main Distribution Areas (MDAs) to Horizontal Distribution Areas (HDAs) using pre-terminated cabling installed in overhead trays with diverse path routing, limited to 1 meter excess length per end. First-level backbone termination shall occupy top RU positions in network racks with mirrored A-side and B-side MDA and HDA configurations. In MDA racks, angled UTP patch panels (2x3) shall begin at RU45 with fiber optic distribution cabinets supporting backbone distribution; HDA racks require fiber optic distribution cabinets populated starting at RU45, with UTP patch panels below blanking panels. Computer room horizontal cabling connects Equipment Distributors (EDs) in server cabinets to HDAs using pre-terminated copper and fiber cabling in overhead systems. Installation requires fiber optic distribution cabinets in server cabinets starting at RU45 with UTP patch panels below, and 12- or 24-strand multimode fiber optic cables between server cabinet EDs and both HDAs.
Facility backbone cabling (inter- and intra-building) connects Entrance Rooms to MDAs and MDAs to Telecommunications Rooms (TRs) using redundant, diversely routed field-terminated paths. Between each Entrance Room and computer room, minimum 24 strands of multimode and 12 strands of single-mode fiber per path are required with appropriate splice cassettes (OM4 multimode, OS1 single-mode). Between MDAs and TRs, two diversely routed paths from A-side and B-side MDAs are mandated, with cable specifications varying by distance and building location: same-building paths under 400 meters require 24 multimode and 12 single-mode strands per path; different-building or longer paths require minimum 24 single-mode strands per path with OS2 splice cassettes. Facility horizontal cabling connects TRs to end-user Work Area Outlets requiring minimum 2 cables per outlet with UTP patch panels occupying top-third rack positions (RU31-45). All cabling and equipment must be labeled per VA Infrastructure Standards for Telecommunications Spaces, and 100% construction drawing sets must include cable media categories, equipment quantities, elevation drawings, full interconnection diagrams, and port/cable label matrices.
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2 7 1 0 0 0 - 1
SECTI ON 2 7 1 0 0 0
STRUCTURED CABLI NG
PART 1 - GENERAL
1 C 1 DESCRI PTI OND
A) T hi s s e c t i o n s pe c i f i e s r e qui r e me nt s f o r t e l e c o mmuni c a t i o ns s t r uc t ur e d c a bl i ng s ys t e ms )
1 C 2 SUMMARY
S e c t i o n I nc l ude s M
A)
B )
C )
D )
C o mput e r Ro o m Ba c kbo ne S t r uc t ur e d C a bl i ng)
C o mput e r Ro o m Ho r i z o nt a l S t r uc t ur e d C a bl i ng)
Fa c i l i t y Ba c kbo ne S t r uc t ur e d C a bl i ng)
Fa c i l i t y Ho r i z o nt a l S t r uc t ur e d C a bl i ng)
1 C 3 REFERENCES
A) VA I nf r a s t r uc t ur e S t a nda r d f o r T e l e c o mmuni c a t i o ns S pa c e s )
1 C 4 RELATED WORKD
A) C a bl i ng l a be l i ng a nd i de nt i f i c a t i o n M S e c t i o n 2 7 0 5 5 3 , I DENT I FI C AT I ON
FOR C OMMUNI C AT I ONS S YS T EMS )
B ) C a bl e t e r mi na t i o n l o c a t i o ns a nd e qui pme nt M S e c t i o n 2 7 1 1 1 9 , C OMMUNI C AT I ONS T ERMI NAT I ON BLOC KS AND P AT C H P ANELS )
1 C 5 SUBMI TTALSD
A) S ubmi t i n a c c o r da nc e wi t h S e c t i o n 2 7 0 5 0 0 , C OMMON WORK RES ULT S FOR
C OMMUNI C AT I ONS S YS T EMS )
PART 2 - PRODUCTS
2 C 1 COMPUTER ROOM BACKBONE STRUCTURED CABLI NGC
A) Ba c kbo ne s t r uc t ur e d c a bl i ng i n t he c o mput e r r o o m e nvi r o nme nt ^ f i r s t l e ve l ba c kbo ne _ c o nne c t s t he Ma i n Di s t r i but i o n Ar e a s ^ MDAs _ t o t he
Ho r i z o nt a l Di s t r i but i o n Ar e a s ^ HDAs _ )
B) I ns t a l l f i r s t l e ve l ba c kbo ne s t r uc t ur e d c a bl i ng i n o ve r he a d t r a y o r j -ho o ks f o l l o wi ng di ve r s e pa t h r o ut i ng)
C) Al l c a bl i ng us e d s ha l l be pr e - t e r mi na t e d a nd pr o c ur e d t o t he s pe c i f i c l e ngt h r e qui r e d by t he de s i gn ^ ho r i z o nt a l a nd ve r t i c a l pa t hs _ wi t h no mo r e t ha n 1 me t e r o f e xc e s s l e ngt h o n e a c h e nd)
D) T e r mi na t e f i r s t l e ve l ba c kbo ne s t r uc t ur e d c a bl i ng i n t he t o p RU po s i t i o ns o f e a c h ne t wo r k r a c k , wo r ki ng do wnwa r d, wi t h pa t c h pa ne l e qui pme nt mo unt e d o n t he f r o nt r a i l s )
E) Mi r r o r di s t r i but i o n o n t he A- s i de a nd B- s i de MDA a nd HDA e l e me nt s )
1) I n MDA ne t wo r k r a c ks M
2 7 1 0 0 0 - 2
a) I ns ta l l a ngl e d UT P pa tc h pa ne l 2 s 3 f o r e a c h ba c kbo ne UT P pa tc h pa ne l i n the s a me - s i de HDA i n the c o mpute r ro o m be gi nni ng i n
RU4 5 )
b) I ns ta l l a n a ngl e d pa ne l c o ve r o n the l o we s t UT P pa tc h pa ne l )
c) I ns ta l l a bl a nki ng pa ne l i n the RU be l o w the UT P pa tc h pa ne l s )
d) I ns ta l l f i be r o pti c di s tri buti o n c a bi ne ts to s uppo rt the ba c kbo ne f i be r di s tri buti o n f ro m e a c h HDA)
e) I ns ta l l a bl a nki ng pa ne l i n the RU be l o w the f i be r o pti c di s tri buti o n c a bi ne t 2 s 3 )
2) I n HDA ne two rk c a bi ne ts 6
a) I ns ta l l f i be r o pti c di s tri buti o n c a bi ne t 2 s 3 a nd po pul a te wi th f i be r o pti c di s tri buti o n c a s s e tte s s ta rti ng i n RU4 5 )
b) I ns ta l l a bl a nki ng pa ne l i n the RU be l o w the l a s t f i be r c a bi ne t )
c) I ns ta l l UT P pa tc h pa ne l 2 s 3 be l o w the bl a nki ng pa ne l )
d) I ns ta l l a bl a nki ng pa ne l i n the RU be l o w the l a s t UT P pa tc h pa ne l )
e) I ns ta l l UT P c a bl e s be twe e n the s a me - s i de MDAs a nd HDAs )
f) I ns ta l l 1 2 - o r 2 4 - s tra nd mul ti mo de f i be r o pti c c a bl e s be twe e n e a c h f i be r c a s s e tte i n the HDA to e i the r the s a me - s i de MDA o r the o ppo s i te s i de MDA a s a ppro pri a te )
2 8 2 COMPUTER ROOM HORI Z ONTAL STRUCTURED CABLI NG8
A) Ho ri z o nta l s truc ture d c a bl i ng i n the c o mpute r ro o m e nvi ro nme nt c o nne c ts the Equi pme nt Di s tri buto rs 2 EDs 3 i n the s e rve r c a bi ne ts to e a c h s uppo rte d Ho ri z o nta l Di s tri buti o n Are a 2 HDA3 )
B) I ns ta l l ho ri z o nta l s truc ture d c a bl i ng i n o ve rhe a d c a bl e tra y a nd f i be r ra c e wa y s ys te ms f o l l o wi ng di ve rs e pa th ro uti ng)
C) Al l c a bl i ng us e d s ha l l be pre - te rmi na te d a nd pro c ure d to the s pe c i f i c l e ngth re qui re d by the de s i gn 2 ho ri z o nta l a nd ve rti c a l pa ths 3 wi th no mo re tha n 1 me te r o f e xc e s s l e ngth o n e a c h e nd)
1) I n the s e rve r c a bi ne ts , te rmi na te ho ri z o nta l s truc ture d c a bl i ng i n
EDs l o c a te d i n the to p 5 U o f e a c h c a bi ne t , wi th pa tc h pa ne l e qui pme nt mo unte d o n the re a r ra i l s )
a) I ns ta l l f i be r o pti c di s tri buti o n c a bi ne t 2 s 3 s ta rti ng i n RU4 5 a nd po pul a te wi th f i be r o pti c di s tri buti o n c a s s e tte s to s uppo rt the re qui re me nt)
b) I ns ta l l a bl a nki ng pa ne l i n the RU be l o w the l a s t f i be r c a bi ne t )
c) I ns ta l l c o ppe r UT P pa tc h pa ne l 2 s 3 be l o w the bl a nki ng pa ne l )
2 7 1 0 0 0 - 3
2) I n t he HDAs , t e r mi na t e ho r i z o nt a l s t r uc t ur e d c a bl i ng i n t he RU po s i t i o ns i mme di a t e l y be l o w t he f i r s t l e ve l ba c kbo ne s t r uc t ur e d c a bl i ng e qui pme nt o f e a c h ne t wo r k c a bi ne t , wo r ki ng do wnwa r d, wi t h pa t c h pa ne l e qui pme nt mo unt e d o n t he f r o nt r a i l s )
a) I ns t a l l f i be r o pt i c di s t r i but i o n c a bi ne t 6 s ) a nd po pul a t e wi t h f i be r o pt i c di s t r i but i o n c a s s e t t e s t o s uppo r t e a c h s e r ve r c a bi ne t )
b) I ns t a l l a bl a nki ng pa ne l i n t he RU be l o w t he f i be r o pt i c di s t r i but i o n c a bi ne t 6 s ) )
D) I ns t a l l 1 2 - o r 2 4 - s t r a nd mul t i mo de f i be r o pt i c c a bl e s be t we e n t he s e r ve r c a bi ne t ED a nd bo t h HDAs )
E) I ns t a l l UT P c a bl e s be t we e n t he s e r ve r c a bi ne t ED a nd bo t h HDAs )
2 : 3 FACI LI TY BACKBONE STRUCTURED CABLI NG:
Ba c kbo ne s t r uc t ur e d c a bl i ng 6 i nt e r - bui l di ng a nd i nt r a - bui l di ng f i r s t l e ve l ba c kbo ne ) c o nne c t s t he Ent r a nc e Ro o ms t o t he Ma i n Di s t r i but i o n Ar e a s 6 MDAs ) i n t he c o mput e r r o o m, a nd c o nne c t s t he Ma i n Di s t r i but i o n Ar e a s t o e a c h
T e l e c o mmuni c a t i o ns Ro o m 6 T R) ) T hi s s pe c i f i c a t i o n de s c r i be s f a c i l i t y ba c kbo ne s t r uc t ur e d c a bl i ng whe n t he Ent r a nc e Ro o ms a nd c o mput e r r o o m a r e i n t he s a me bui l di ng, c o nne c t e d e nt i r e l y by e nvi r o nme nt a l l y c o ndi t i o ne d pa t hwa ys 6 no o ut s i de pl a nt pa t hwa ys a r e t r a ns i t e d) )
A) I nt e r i o r t o e a c h t e l e c o mmuni c a t i o ns s pa c e , i ns t a l l f a c i l i t y ba c kbo ne s t r uc t ur e d c a bl i ng i n o ve r he a d c a bl e t r a y a nd f i be r r a c e wa y s ys t e ms )
B) Al l f a c i l i t y ba c kbo ne s t r uc t ur e d c a bl i ng s ha l l be r e dunda nt a nd f o l l o w di ve r s e pa t h r o ut i ng)
C) Fa c i l i t y ba c kbo ne c a bl i ng s ha l l be f i e l d- t e r mi na t e d 6 f us i o n s pl i c e d) )
D) Be t we e n e a c h Ent r a nc e Ro o m a nd t he c o mput e r r o o mN
1) P r o vi de 2 di ve r s e l y r o ut e d pa t hs o f ba c kbo ne c a bl i ng f r o m e a c h
Ent r a nc e Ro o m) One pa t h wi l l t e r mi na t e o n t he A- s i de MDA a nd o ne pa t h wi l l t e r mi na t e o n t he B- s i de MDA)
2) I ns t a l l a mi ni mum o f 2 4 s t r a nds o f mul t i mo de f i be r o pt i c c a bl i ng a nd
1 2 s t r a nds o f s i ngl e - mo de f i be r o pt i c c a bl i ng pe r pa t h)
3) P o pul a t e t he f i be r o pt i c di s t r i but i o n c a bi ne t s o n e a c h e nd wi t h a s uf f i c i e nt qua nt i t y o f mul t i mo de OM4 a nd s i ngl e - mo de OS 1 f i be r o pt i c s pl i c e c a s s e t t e s pe r pa t h)
2 7 1 0 0 0 - 4
E) Be t we e n e a c h MDA a nd e a c h T R3
1) No z o ne / i nt e r me di a t e di s t r i but i o n a r e a s 6 Z DAs / I DAs 8 i nt e r me di a t e c r o s s - c o nne c t s 6 I C C s 8 s ha l l be us e d) Al l f a c i l i t y ba c kbo ne c a bl i ng be t we e n t he MDAs a nd T Rs s ha l l be r un di r e c t l y a nd c o nt i nuo us l y)
2) P r o vi de 2 di ve r s e l y r o ut e d pa t hs o f ba c kbo ne c a bl i ng, o ne f r o m t he
A- s i de MDA a nd o ne f r o m t he B- s i de MDA)
3) Whe r e t he T R i s l o c a t e d i n t he s a me bui l di ng a s t he c o mput e r r o o m
MDAs 6 do e s no t t r a ns i t o ut s i de pl a nt pa t hwa ys 8 a nd t he pa t h di s t a nc e i s l e s s t ha n 4 0 0 me t e r s , i ns t a l l a mi ni mum o f 2 4 s t r a nds o f mul t i mo de f i be r o pt i c c a bl i ng a nd 1 2 s t r a nds o f s i ngl e - mo de f i be r o pt i c c a bl i ng pe r pa t h)
a) P o pul a t e t he f i be r o pt i c di s t r i but i o n c a bi ne t s o n e a c h e nd wi t h a s uf f i c i e nt qua nt i t y o f mul t i mo de OM4 a nd s i ngl e - mo de OS 1 f i be r o pt i c s pl i c e c a s s e t t e s pe r pa t h)
4) Whe r e t he T R i s l o c a t e d i n a di f f e r e nt bui l di ng a s t he c o mput e r r o o m
6 t r a ns i t s o ut s i de pl a nt pa t hwa ys 8 o r t he pa t h di s t a nc e i s gr e a t e r t ha n 4 0 0 m, i ns t a l l a mi ni mum o f 2 4 s t r a nds o f s i ngl e - mo de f i be r o pt i c c a bl i ng pe r pa t h)
a) P o pul a t e t he f i be r o pt i c di s t r i but i o n c a bi ne t s o n e a c h e nd wi t h a s uf f i c i e nt qua nt i t y o f s i ngl e - mo de OS 2 f i be r o pt i c s pl i c e c a s s e t t e s pe r pa t h)
2 @ 4 FACI LI TY HORI Z ONTAL STRUCTURED CABLI NG@
Fa c i l i t y ho r i z o nt a l s t r uc t ur e d c a bl i ng 6 ho r i z o nt a l di s t r i but i o n 8 c o nne c t s t he T e l e c o mmuni c a t i o ns Ro o m 6 T R8 t o e a c h e nd- us e r Wo r k Ar e a Out l e t 6 WAO 8 )
A) I nt e r i o r t o e a c h T R, i ns t a l l ho r i z o nt a l di s t r i but i o n s t r uc t ur e d c a bl i ng i n o ve r he a d c a bl e t r a y s ys t e ms )
B) Al l ho r i z o nt a l di s t r i but i o n s t r uc t ur e d c a bl i ng s ha l l ha ve a mi ni mum o f
2 c a bl e s pe r WAO)
C) Ho r i z o nt a l di s t r i but i o n s t r uc t ur e d c a bl i ng ma y be f i e l d- t e r mi na t e d)
D) I n e a c h T R i ns t a l l s uf f i c i e nt UT P pa t c h pa ne l s t o s uppo r t t he qua nt i t y o f WAOs i n t he T R' s s e r vi ng z o ne g
1) P l a n ne t wo r k r a c ks s uc h t ha t pa t c h pa ne l s a nd ho r i z o nt a l c a bl e ma na ge r s a r e l o c a t e d i n t he t o p 1 / 3 6 RU3 1 - 4 5 8 , s wi t c hi ng e qui pme nt i n t he mi ddl e 1 / 3 6 RU1 6 - 3 0 8 , a nd po we r di s t r i but i o n a nd o t he r s e r vi c e s i n t he bo t t o m 1 / 3 6 RU1 - 1 5 8 )
E) I ns t a l l a mi ni mum o f 2 UT P c a bl e s be t we e n t he T R UT P pa t c h pa ne l s a nd e a c h wo r k a r e a f a c e pl a t e )
2 7 1 0 0 0 - 5
F 0 Ea c h t ypi c a l e nd- us e r r e c e pt a c l e s ha l l be c o ns t r uc t e d o f a s i ngl e - ga ng wo r kbo x wi t h o ne c o nne c t o r c ha s s i s , a mi ni mum o f t wo no n- pr o pr i e t a r y
C a t e go r y 6 A 8 P 8 C me di a i nt e r f a c e c o nne c t o r s 7 RJ- 4 5 9 , a nd a f o ur -po s i t i o n ke ys t o ne f a c e pl a t e 0
1 0 Mo dul a r pl ug t e r mi na t e d l i nks 7 MP T L 9 a r e pe r mi t t e d t o s e r vi c e wi r e l e s s a c c e s s po i nt s 7 WAP s 9 , c a me r a s , a nd o t he r P o we r o ve r
Et he r ne t 7 P o E 9 de vi c e s whe r e ma t i ng wi l l be ve r y i nf r e que nt 0
PART 3 - EXECUTI ON
3 K 1 I MPLEMENTI ONO
A0 1 0 0 % c o ns t r uc t i o n dr a wi ng s e t s s ha l l i nc l ude dr a wi ngs de t a i l i ng t he c o mput e r r o o m a nd f a c i l i t y/ c a mpus s t r uc t ur e d c a bl i ng s ys t e ms , i nc l udi ng Q
1 0 C a bl e me di a pe r f o r ma nc e c a t e go r i e s f o r e a c h t ype o f r un 0
2 0 C a bl i ng a nd e qui pme nt qua nt i t i e s 0
3 0 El e va t i o n dr a wi ngs s ho wi ng e qui pme nt pl a c e me nt i n i ndi vi dua l e nc l o s ur e s 0
4 0 Ful l i nt e r c o nne c t i o n di a gr a m f o r a l l s t r uc t ur e d c a bl i ng 0
5 0 P o r t ma p a nd c a bl e l a be l ma t r i c e s 0
B 0 Al l c a bl i ng a nd e qui pme nt s ha l l be l a be l e d pe r t he r e qui r e me nt s o f t he
VA I nf r a s t r uc t ur e S t a nda r d f o r T e l e c o mmuni c a t i o ns S pa c e s 0
- - - E N D - - -
| SECTI ON 2 7 1 0 0 0 STRUCTURED CABLI NG |
| 1 C 2 SUMMARY |
| PART 2 - PRODUCTS |
| 2 8 2 COMPUTER ROOM HORI Z ONTAL STRUCTURED CABLI NG8 |
| 2 @ 4 FACI LI TY HORI Z ONTAL STRUCTURED CABLI NG@ |
| PART 3 - EXECUTI ON 3 K 1 I MPLEMENTI ONO |
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