Module Description
80-14001000-03
2–9
2.7 Physical User Interfaces
Three types of user interface are provided on the rear interface cards:
V.24
On 25-way ‘D’-type female connectors
X.21
On 15-way ‘D’-type female connectors
V.35
On 34-way MRAC female connectors
As alternative connection means are provided by changing the rear
interface cards, all four ports are always of the same type.
In all cases, all User ports operate as DCEs, and Link ports operate as
DTEs.
The SBUQLS and SBUQLB operate at the data rates shown in
Table 2
below (selectable per port):
300
Async only
600
1,200
2,400
4,800
Synch and Async
9,600
19,200
38,400
48,000
56,000
Synch only
64,000
Table 2 - User Port Data Rates
Data rates below 64 kbit/s are rate-adapted up to 64kbit/s on the
SBUQLS/QLB, using X.21, V.35 or V.24 rear cards.
Summary of Contents for SBUQHS/QHB
Page 92: ...Menu Diagrams 80 14001000 03 12 3...
Page 93: ...Quad User Modules User Manual 80 14001000 03 12 4 12 1 2 SBUQLS QLB Operation Menu...
Page 94: ...Menu Diagrams 80 14001000 03 12 5 12 2 SBUQHS 12 2 1 SBUQHS QHB Operation Menu...
Page 95: ...Quad User Modules User Manual 80 14001000 03 12 6 12 2 2 SBUQHS QHB Configuration Menu...
