Specifications

Chapter 1 Introduction Installation and Operation Manual
1-6 Technical Specifications FOM-E3/ETH, FOM-T3/ETH Ver. 1.0
Overhead 30 bits per frame (added to the Ethernet frames when
they are sent toward E3/T3 line)
Connector RJ-45
Timing
Clock Source Internal clock provided by on-board crystal oscillator
(±25 ppm)
Indicators
PWR ON – FOM-E3/ETH or FOM-T3/ETH is powered up
OPTICAL ERR ON – Bit error rate of the signal received from the
optical interface is 10
-6
or worse
OPTICAL AIS ON – E3/T3 interface received Alarm Indication Signal
ETH LINK ON – LAN is connected to the Ethernet interface
ETH ACT ON – LAN is receiving/transmitting data
ETH 100 ON – LAN is operating at 100 Mbps
OFF – LAN is operating at 10 Mbps
Alarm Relay
Connector 9-pin, D-type female (dry)
Operation Normally Open and Normally Closed, using different pins
Power
AC Source 100 to 240 VAC, 50 or 60 Hz, 15 VA
DC Source 24 or 48VDC nominal (20 to 72 VDC), 9W
Physical
Height 4.4 cm (1.7 in)
Width 19.4 cm (7.6 in)
Depth 24.3 cm (9.6 in)
Weight 1.4 kg (3.0 lb)
Environment
Temperature 0° to 50°C (32° to 122°F)
Humidity Up to 90%, non-condensing