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Chapter 2. Installation and Operation
DSX-3
NONCRITICAL
L
A
N
OUT
NO COM NC
M
O
EXT CLK
D
E
M
CRITICAL
To properly ground the breakout panel, expose the contact points' bare metal prior
to installation. Do this by scraping the paint from the portion of the panel's
mounting ears that makes contact to the rack.
REAR PANEL
The MX2800 rear panel is equipped with a LAN port, a modem
port, two alarm output terminal blocks, an external clock interface,
two sets of DS3 in/out jacks, two Amphenol (Amp) connectors,
and DC/AC power connections. Figure 2-3 illustrates the rear
panel and identifies its equipment. Descriptions for these items
follow the figure. Pin assignments are given in Pinouts on page A-1.
2-6
Front View
2
1
Rear View
IN
DSX-1/E1
A
(OUT)
IN
Cable 1
DSX-1/E1
B
MX2800 User Manual
4
6
8
10
12
14
16
18
20
3
5
7
9
11
13
15
17
19
OUT
Cable 2
(IN)
Figure 2-2. The Breakout Panel
22
24
26
28
21
23
25
27
115VAC 50/60HZ
0.8a
DC POWER
PWR
PWR
RET
RET
FAIL
FAIL
B
A
USE COPPER
CONDUCTORS ONLY!
61200290L1-1
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