4-22
Issue 9 October 1998
363-206-204
Powering, Verification, and Circuit Pack Installation
Table 4-2. DDM-2000 OC-3 Shelf Circuit Pack Codes
Notes:
1. Maximum per shelf is based on Point-to-Point applications only.
2. Minimum functionality, as defined here, includes protection switching, thus protection cir-
cuit packs are included.
†An even number of MXRVOs, DS3s and/or EC-1s must be installed to accommodate pro-
tection switching. Also, the sum of MXRVOs, DS3s and EC-1s cannot exceed six.
††For every function group equipped with MXRVOs, between two and eight DS1s must be
installed.
* Unequipped DS1 service slots in an in-service low speed group MUST be terminated with
177A retainers. The sum of DS1s and 177As MUST total eight per function group to
accommodate protection switching.
‡ For 21 and 22 type OLIUs, minimum and maximum circuit pack quantities are determined
by network topology. 21 type OLIUs are not used with ring Releases 7, 9, 11 and 13.
27G-U OLIUs are used only with Releases 9, 11 and 13 shelves configured as DDM-
2000 FiberReach hosts.
# A maximum of 3 BBF8 circuit packs can be used per function group.
Product Code Description
Max/
Shelf
(Note1)
Min/
Shelf
(Note2)
ED-8C724-30, G3/G4 DDM-2000 Shelf Assembly - -
BBG2 MXRVO Circuit Pack 6
â€
-
BBG4/BBG4B DS3 Circuit Pack 6 -
BBG19 DS3 Circuit Pack 6 -
BBG20 Trans-Mux - -
BBG5/BBG8 SYSCTL Circuit Pack 1 1
BBG6 STS-1E Circuit Pack 6 -
BBG7/BBG9
/
BBG10 OHCTL Circuit Pack 1 1
BBF2/BBF2B TGS Circuit Pack 2 2
BBF1B/BBF3 DS1PM Circuit Pack 24
††*
-
BBF8 HDSL Circuit Pack 9# -
177A Retainer* -* -
21G OLIU -
‡
-
21D OLIU -
‡
-
22F OLIU -
‡
-
22G-U OLIU -
‡
-
22D-U OLIU -
‡
-
24G-U OLIU 2 -
27G-U OLIU -
‡
-