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Maintenance
61181307L7-5E 27
MAINTENANCE
The QDFR does not require routine maintenance for normal operation. In case of equipment
malfunction, use the rear panel bantam jack connectors to help locate the source of the
problem. ADTRAN does not recommend that repairs be attempted in the field. Repair services
may be obtained by returning the defective unit to ADTRAN. Refer to “Appendix C, Warranty”
for further information.
SPECIFICATIONS
Specifications for the QDFR are detailed in Table 5.
Table 5. Specifications
Specification Description
Environmental
Operating Temperature:
Storage Temperature:
Relative Humidity:
–40°C to +65°C
–40°C to +85°C
95 percent maximum @ 50°C, noncondensing
Power
Input Voltage Range:
Maximum Current:
Maximum Power Dissipation:
–24 VDC to –48 VDC input
90 mA –48 VDC
4.32 watts
Physical
Dimensions:
Weight:
Mounting:
Height: 1.8 inches
Width: 8.0 inches
Depth: 9.0 inches
2.5 pounds
Wallmount or Desktop
Optical (QDFR)
Fiber Type:
Wave Length:
Optical Budget:
Output Optical Power (P):
Receive Level:
Connector:
Single mode
1310 nm receive and 1550 nm transmit
17 ±1 dB
–14 dBm <
P < –8 dBm
–31 ±1 dBm (worst case)
Single SC connector
Connectors (QDFR)
T1 interface:
Fiber:
RJ-48C
Flat SC adapter
Compliance
Agency Approvals: UL 60950
Part Number
Quad Fiber Remote: 1181307L7