Avaya 03-300430 User Manual

Page of 2574
DS1C-BD
Issue 1 June 2005
1077
 
DS1C-BD
S8700 MC
 only
Also called DS1 Converter
The DS1 converter complex is part of the port-network connectivity (PNC) consisting of two 
TN574 DS1 Converter or two TN1654 DS1 Converter circuit packs connected by one to four 
DS1 facilities. It is used to extend the range of the 32-Mbps fiber links that connect PNs to the 
Center Stage Switch, allowing PNs to be located at remote sites.
The TN1654 DS1 Converter Circuit pack is a redesign of the TN574 DS1 Converter board. The 
TN1654 provides functionality equivalent to the TN574 but also adds a 32-channel E1 interface 
for international support as well as circuit-switched wideband connections (NxDS0). The 
TN1654 is supported beginning with DEFINITY Release 5r.
Every error condition reported by the firmware is associated with background tests that the 
firmware runs autonomously. Demand tests that are executed by the maintenance software do 
not cause any new error generation by the firmware. However, Failure Audit test (#949) affects 
auditing of the software error log by forcing the firmware to report the pending errors again.
Maintenance of the DS1 facilities themselves is covered under the “DS1-FAC” MO.
The DS1 converter complex can extend a fiber link between two EIs or between a PN EI and an 
SNI. Fiber links between two SNIs or between a PN and the Center Stage Switch (CSS) cannot 
be extended.
The TN1654 board is not compatible with the TN574 board. A DS1 converter complex may 
consist of two TN574 boards or two TN1654 boards, but a TN574 cannot be combined with a 
TN1654 in the same complex. A system with multiple DS1 converter-remoted PNs may contain 
DS1 converter complexes of both types, TN1654 board-pairs and TN574 board-pairs. 
Critical-reliability configurations with a pair of DS1 converter complexes serving an PN require 
identical board pairs and facilities. For example, a TN574 complex and a TN1654 complex may 
not be used together to serve the same PN in a critical-reliability configuration.
DS1 converter circuit packs connect to TN570 Expansion Interface (EI) circuit packs and TN573 
Switch Node Interface (SNI) circuit packs via metallic cables as shown in 
the metallic cable if it is necessary to locate the DS1 converter far from the connected EI or SNI 
circuit pack, for example, in an adjacent cabinet.
MO Name in 
Alarm Log
Alarm 
Level
Initial SAT Command to Run
Full Name of MO
DS1C-BD
MAJ
test board location sh r 1
DS1 converter circuit pack
DS1C-BD
MIN
test board location sh r 1
DS1 converter circuit pack
DS1C-BD
WRN
test board location sh r 1
DS1 converter circuit pack