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Section 2, Installation and Operation
Rear Panel
• Two sets of NET in/out jacks
• Two amphenol connectors
• DC/AC power connections
• Wire-wrap pins for external connection of BITS clock
Descriptions for the items shown in
the tables in
Appendix B,
DS3/STS-1
3
L
1
NONCRITICAL
A
N
OUT
IN
M
NO COM NC
O
2
D
E
M
CRITICAL
#
Item
1
Ethernet LAN
2
Modem
3
Noncritical/Critical
4
DS3/STS-1
5
DSX-1/E1
6
Power
7
8
115 VAC 50/60 Hz
9
BITS Clock
LAN Port
The
port is an 8-pin modular connector that provides a 10Base-T ethernet LAN interface. This
LAN
interface is used for SNMP and Telnet control.
Connect the LAN port to intra-building wiring only.
2-6
Figure 2-3
are explained in
Pinouts.
A
4
B
Figure 2-3. MX2800 STS-1 Rear View
Table 2-2. MX2800 Review View Identifiers
Function
10Base-T Ethernet connection
Telephone line connection for internal V.34
Connections for external audible/visual alarms
EC-1/STS-1 service connection for controller cards A and B
64-pin female amphenol connectors for T1/E1s
DC power connection
Ground stud
AC power connection
Wire-wrap pins for external connection of BITS clocks
Table
2-2. Pin assignments are given in
DSX-1/E1
(OUT)
5
DSX-1/E1
(IN)
NOTE
MX2800 STS-1 User Manual
DC POWER
7
115 AC 50/60Hz
0.8A
6
8
PWR
PWR
–
–
RET
RET
FAIL
FAIL
B
A
-48V
0.7A
9
T R S T R
S
CLK
CLK
A
B
LAN
61204659L1-1A
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