Mitel SX-200 Practices page 1197

18
' DATASHELF 9100 DESCRIPTION
\
The DATASHELF 9100, part number 9141-901-I 00-NA, is 8.75 in, high, The left side
of the shelf holds up to 16 dataset cards, while the right side contains an integral shelf
power supply. All connections to the DATASHELF 9100 are made at the back of the
shelf, Each card has connectors which are connected directly to the device with which
the dataset is to communicate- Each dataset also has an edge connector which plugs
into the shelf backplane; this connector provides power to the card, and connects
Tip-Ring pairs through the backplane to the PABX. Figure 18-l shows a front view of
the DATASHELF 9100.
The shelf, the backplane, and the shelf power supply are one integral unit. The power
supply provides 9 vat to each card connector. The power cord from the ac distribution
panel plugs into the back of the shelf, directly behind the power supply. The dataset
edge connectors which plug into the shelf connect the Tip and Ring to the 25-pair
connector (Jl7) which is cabled to the PABX MDF. The pair assigned to each dataset
is listed in Table 18-I. Figure 18-2 shows the backplane and connectors of the
DATASHELF 9100.
Table 18-I DATASHELF 9100 Tip and Ring Ph Assignments
9109-096-l 26-NA Issue
1
Revision 0 126 16-l