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Chapter 2. Installation
•
Connect to a reliably-grounded 12-48 Vdc source which is electrically isolated from the AC source having
LPS or NEC Class 2 outputs
OR
•
Use a Listed Class 2 Direct Plug-In Supply with an output rated 12-48 Vdc, minimum 350 mA, maximum
240 VA.
Note: The branch circuit overcurrent protection shall be a fuse or circuit breaker rated at a minimum of 48 V to
a maximum of 10 A.
A readily accessible disconnect device that is suitably approved and rated, shall be incorporated in the field
wiring.
The unit shall be installed in accordance with the requirements of NEC NFPA 70, where applicable.
To use the cable of the supplied power supply with a local supply, connect the black wire to the negative pole of
the power supply and connect the black and white wire to the positive pole of the power supply. The outside
contact point of the barrel plug connects to the negative pole and the center contact point of the barrel plug
connects to the positive pole.
WIRING
The connectors are described in this section.
RJ-48C Connectors
Two RJ-48C connectors are located on the back end of the T1 ESF CSU ACE. The NET connector
connects the unit to the network. The connector marked CPE connects the unit to the data terminal
equipment. These connectors have exactly the same pinouts.
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
See Table A-1 on page 51 for the RJ-48 connector pin assignments.
EIA-232 Connector
The EIA-232 connector is used to connect the T1 ESF CSU ACE to a proxy agent, T-Watch, an ASCII
terminal, or a modem.
See Table A-2 on page 51 for the connector pin assignments.
Connector Type = Female DB-9
30
Method 2
© 2004 ADTRAN, Inc
T1 ESF CSU ACE User Manual
61204025L1-1B
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