Figure 2-1. Dc Power Connector; Table 2-1. Dc Connector Symbol Definitions - ADTRAN MX2800 M13 User Manual

MX2800 M13 Multiplexer User Manual
DS3/STS-1
L
NONCRITICAL
A
N
OUT
M
NO COM NC
O
D
E
M
CRITICAL
Symbol
PWR FAIL
The following UL requirements must be met during installation of the MX2800 DC version:
1. Disconnect all power sources prior to servicing. Unit may use multiple power sources.
2. Input: Minimum 48 VDC, 0.8 amps
3. Input: Minimum 120 VAC, 0.32 amps
4. Connect to a reliably grounded –48 VDC source which is electrically isolated from the AC source. Use
24 VDC source for 1202289L3.
5. The branch circuit overcurrent protection must be a fuse or circuit breaker rated minimum 48 VDC,
maximum 20 amps.
61200290L1-1G
A
IN
B

Figure 2-1. DC Power Connector

Table 2-1. DC Connector Symbol Definitions

Definition
Battery backup connector. If the AC fails, a trap is sent to
alert user when connected to the 4175043L2 battery
backup or equivalent system.
– Negative side of DC power source (usually –48 VDC)
RET Positive side of DC power source (usually ground)
Frame Ground
Installation and Operation, Section 2
DSX-1/E1
(OUT)
DSX-1/E1
(IN)
115 AC 50/60Hz
DC POWER
0.8A
PWR PWR
– + – +
FAIL FAIL
B A
-48V 0.7A
+24V 1.5A
T R S T R S
CLK CLK
A B
2-3