Installation 2-11
PRISM 3021
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9
Unit 10
Unit 11
Unit 12
Rack and
19" or 23" Multiple
Line Chassis
Mounting Hardware
Figure 2 -13 Model 1051-3 Chassis, Front View
( A )
ENET
High
Speed
DTE
12
High
Speed
DTE
11
High
Speed
DTE
1
0
High
Speed
DTE
1
High
Speed
DTE
2
High
Speed
DTE
3
High
Speed
DTE
4
High
Speed
DTE
5
High
Speed
DTE
6
High
Speed
DTE
7
High
Speed
DTE
8
High
Speed
DTE
9
NMS
OUT
( A )
NMS
IN
( B )
NMS
IN
T1
DTE
12
T1
DTE
11
T1
DTE
10
T1
DTE
9
T1
DTE
8
T1
DTE
7
T1
DTE
6
T1
DTE
5
T1
DTE
4
T1
DTE
3
T1
DTE
2
T1
DTE
1
TB2 -
2 3 4 5 6
1
1 - EXT CLK
2 - EXT CLK
3 - ALARM RING
TB1
4 - ALARM TIP
5 - SIG GND
1 - +48V RTN (B)
2 - FRAME GND
3 - -48V IN (B)
4 - -48V IN (A)
5 - SIG GND
6 - + 48V RTN (A)
TB2
T1
NET
12
T1
NET
11
T1
NET
10
T1
NET
9
T1
NET
8
T1
NET
7
T1
NET
6
T1
NET
5
T1
NET
4
T1
NET
3
T1
NET
2
T1
NET
1
( B )
NMS
OUT
1
6
TB1
-
2 3 4 5
1
Redundant
Power
Board
NOTE: The DB-25 version (1051-2) is also available (the V.35 is shown).
Figure 2-14 Model 1051-3 Chassis, Rear View
For 3021 applications, read E1 in place of T1 on the rear of the 1051 chassis.
