Platform Descriptions
Issue 8.0 July 2002
3-49
The Low-Speed Shelf — System Controller (Figure 3-28) is functionally identical
to Figure 3-27 and is its new replacement. The main distinguishing differences
are: (1) a slightly modified User Panel and (2) a fully integrated backplane.
Figure 3-28. Low-Speed Shelf — System Controller (Without
Circuit Pack Cover) — ED6G999-32, G3
TOHCTL is required only if you use OC3 or OC12 circuit packs and want DCC capabilities.
✝
Interconnection Panel
Panel
User
SYSMEM
LS INTFC
SYSCTL8B8A7B7A6B6A5B5A2
TG
1
M
E
M
S
Y
S
L
T
C
S
Y
S
TG3
LSSW is required only if you use DS3 and/or STS1E circuit packs with low speed protection
(low speed protection is strongly recommended).
1 DS3 and/or 1 STS1E
OC3
and/or
IS3*
and/or
OC12
and/or
STS1E
and/or
DS3
3B3A2B2A1B1A
W
S
S
L
LS SWLS INTFC
OUTINP2P14B4A
T
O
H
C
T
L
TOHCTL
OC3
and/or
IS3*
and/or
OC12
and/or
STS1E
and/or
DS3
✝
✝
✝
* IS3 circuit pack is for intraoffice applications only.
✝
✝
adr04008.01eJK040997