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ATLAS 550 (AC SYSTEM)
Quick Start Guide
Reviewing the Rear Panel
1
Admin Interface Pinout
PIN
NAME
DESCRIPTION
1
SG
Signal Ground
2
RTS
Request to Send (output), follows CTS
3
TD
Transmit Data (input)
4
DTR
Data Terminal Ready (output), +12 V
5
RD
Receive Data (output)
6
DCD
Data Carrier Detect (input)
7
—
Not Connected
8
CTS
Clear to Send (input)
10/100BaseT Ethernet Interface Pinout
PIN
NAME
DESCRIPTION
1
TX1
Transmit Positive
2
TX2
Transmit Negative
3
RX1
Receive Positive
4,5
—
Unused
6
RX2
Receive Negative
7, 8
—
Unused
External Relay Connection Pinout
PIN
NAME
DESCRIPTION
1
Alarm Out
Outputs EIA-232 level signal for connection to external
alarm contacts.
2
Alarm In
Monitors signal coming from external alarm contacts.
Quick Start Guide, 61200305L2-13A, May 2003
Option Module Slots
500 Series
500 Series
NETWORK 1
500 Series
Network Module Slots
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3
4
NETWORK 2
Admin Port
Alarm Relay Connection Pinout
PIN
NAME
1
Normally Closed (NC)
2
Normally Open (NO)
3
Common (COM)
4
Chassis Ground (GND)
Connecting Power to the ATLAS 550
The AC-powered ATLAS 550 comes equipped with a detachable 8-foot power
cord with a 3-prong plug for connecting to a grounded power receptacle. Please
refer to Section 3, Network Turnup Procedures, of the ATLAS 550 System Manual
for more detailed instructions.
• This unit shall be installed in accordance with Article 400 and 364.8
of the NEC NFPA 70 when installed outside of a Restricted Access
Location (i.e., central office, behind a locked door, service
personnel only area).
• Power to the ATLAS 550 must be from a grounded 90-240 VAC,
50/60 Hz source.
• The power receptacle uses double-pole, neutral fusing.
• Maximum recommended ambient operating temperature is 45
P/N 1200305L2
AC Power Connection
500 Series
O
I
90-240VAC, 2A
V
VAC, 2A
A
50/60Hz
500 Ser
T
TING:
2A/250V SLO-BLO
ETHERNET
ADMIN
RELAY
ALARM
500 Series
MON
NC
NO
External Relay
10/100BaseT
Ethernet
Connection
DESCRIPTION
Opens when a selected alarm condition is present.
Closes when a selected alarm condition is present.
Common connection between external circuitry
and NC or NO terminal.
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www.adtran.com
COM
Alarm Relay
Connection
°
C.
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