Nms connections, Power connections, Verilink 1024 chassis rear view – Verilink 1024 Chassis (CG) Configuration/Installation Guide User Manual

Page 2

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TB1

OUTPUT

INPUT

+ 4 8 V D C I N A

C H A S S I S G N D

- 4 8 V D C I N A

- 4 8 V D C I N B

S I G N A L G N D

+ 4 8 V D C I N B

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

TB1

OUTPUT

INPUT

+ 4 8 V D C I N A

C H A S S I S G N D

- 4 8 V D C I N A

- 4 8 V D C I N B

S I G N A L G N D

+ 4 8 V D C I N B

NMS Connections

The NMS ports are used to connect the chassis into
the Verilink EM8100A element manager. Within
the chassis, each unit is physically connected to the
next unit in a daisy-chain fashion. Two 6 - pin mod-
ular connectors are provided for both the A side
and the B side.

Each unit in the NMS chain must have a unique ad-
dress. All units in the chain must use the same
NMS bit rate.

Power Connections

The chassis is designed with two power buses con-
nected to TB1 (terminal block 1). The A bus feeds
the slots 1 through 12. The B bus feeds slots 13
through 24. Connect a Frame Ground lead (18- to
20 - gauge wire) to pin 2 before applying power to
the unit
. Connect the other end of this lead to an ap-
propriate frame ground.

NOTE: The maximum current draw of a
fully loaded chassis is 4 amperes. The
Verilink 1042 power shelf can supply a max-
imum of 4 amperes (refer to the configura-
tion guide for specifications). Ensure that
the proper fuse size is used.

Pin

NMS In (P5) NMS Out (P4)

1

Not Used

Not Used

2

Signal Gnd

Signal Gnd

3

Data Out

Data Out

4

Data In

Not Used

5

Signal Gnd

Signal Gnd

6

Not Used

Not Used

Verilink 1024 Chassis Rear View

145 Baytech Drive

San Jose, California 95134

127 Jetplex Circle

Madison, Alabama 35758

(800) 837- 4546

www.verilink.com

FAX-On-Demand

(800) 957-5465

Technical Assistance Center

(800) 285- 2755

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