ADTRAN D4 U-BR1TE V - Manual (Page 3)

3 Section 61104020L4-5, Issue 3 61104020L4-5C
In SLC-96 Mode I with D1D counting channel bank,
the time slots are allocated as shown in Figure 3 with
two time slots per physical channel slot.
The unit uses two time slots in one physical slot and a
time slot from an adjacent slot when configured for
2B+D operation. When selected for Slot 1, 4, 7, or 10
operation, the unit occupies the two time slots
associated with the physical slot in which it resides
and the upper time slot of the next adjacent physical
slot.
When selected for Slot 2, 5, 8, or 11 operation, the unit
occupies the lower time slot of the occupied physical
slot and the adjacent two time slots of the next
physical slot to the right. When using the Slot 2, 5, 8,
11 option, the physical slot to the right must be left
vacant. A unit selected for one or two time slots,
B1+D, B2+D, B1, B2, 2B, and D only, occupies only
the two time slots associated with the physical slot
used. In this configuration, option the unit for Slot 1,
4, 7, or 10.
Figure 2. Backplane Pin Assignments
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
FRM GND
-12V
GND
+12V
GND
TWD
TSP
TSQ
RNPCN
TDCLK
NGATE
RSP
RNDIS
-48R
NSEIZE
T*
MCLK
+5V
INCLK
TDATA
RCLK
RWD
RSQ
-48V
R*
GND
*2B1Q Signal
Terminals
Figure 3. Time Slot Assignments for 2B+D Service in SLC Mode I w/ D1D Counting
PS1 PS2 PS3 PS4 PS5 PS6 PS7 PS8 PS9 PS10 PS11 PS12
UTS
C1
LTS
UTS
*
LTS
UTS
C2
LTS
UTS =
C1 =
C2 =
upper time slot
physical location of U-BR1TE
optioned as "slots 1, 4, 7, 10"
physical location of U-BR1TE
optioned as "slots 2, 5, 8, 11"
LTS =
PS =
* =
lower time slot
physical slot
(1 physical slot consists of 2 time slots)
Must be empty - time slots are being used
by U-BR1TE card in C2
C1 C2 C1 C2 C1 C2
Unoccupied Unoccupied Unoccupied
NOTE: Unoccupied slots should have blank panels installed to prevent inadvertant use.