7
Fiber optic interface
Transmitter
Light source
LED
Wave length
820 nm
Fiber type
gradient
Minimum peak optical power [in dBm/µW]
fed into the fiber optic cable
50/125
–19 / 12.6
62.5/125
–16 / 25
IDLE-Signal
1 MHz ± 10%
Preamble loss transmit
typ. 1 bit; max. 2 bit
Steady state delay
20 ns
Jabber protect time out
70 ms
Jabber reset
450 ms
Fiber optic interface
Receiver
Photo detector
PIN diode
Optical input power
> –31 dBm (0.8 µW)
Bit error rate (1µW)
< 10
–9
Low light threshold
–30 dBm (1 µW)
Saturation limit
≥
–9 dBm
Preamble loss receive
typ. 1 bit; max. 3 bit
Steady state delay
20 ns
Collision detection time
max. 350 ns
(Data in
➝
SQE out)
Transceiver interface (AUI)
Input:
Termination resistor
78
Ω
±1 %
Sensitivity
500 mV
PP
Maximum DC component
± 50 V
Output:
Output voltage
(data and CD signal)
1,6 V
PP
CD signal frequency
10 MHz ± 10 %
SQE Test (heartbeat)
can be disabled
delay time
1100 ns
length
1000 ns
AUI cable length
0 to 50 m max.
Connections with pin assignments
Transceiver interface
Input:
DO-A: pin 3; DO-B: pin 10
(15-pole, Sub-D plug)
Output:
DI-A: pin 5; DI-B: pin 12
Collision detect: CI-A: pin 2; CI-B: pin 9
Power:
GND: pin 6; +12 V: pin 13
Shielding:
pin 1, 4, 8, 11, 14
Fiber optic interface
2 x IEC 874-10 BFOC/2.5 sockets
Connection capabilities
Transceiver interface
plugged directly on to the AUI interface of connected device or
connected by an AUI cable (50 m max. length)
Fiber optic interface
Fiber optic cable segment maximum
2000 m (50/125) or 3000 m (62.5/125) long
Displays
✻
green LED: LS (link status)
on - fiber optic connection OK
✻
yellow LED: DI (Rx data)
on - data being received over fiber optic cable link
✻
red LED: CD (collision detect)
brief flash – data collision
✻
yellow LED: DO (Tx data)
on - data being transmitted through fiber optic cable link
✻
green LED: P (power)
on – supply voltage present
Dimensions W x H x D
44 mm x 22 mm x 91 mm
Weight
130 g
Ambient temperature
Surrounding air: 0 °C to +50 °C
Storage temperature
Surrounding air: –20 °C to +80 °C
Relative humidity
10 % to 90 % (non-condensing)
Laser protection
Class 1 conform to EN 60825-1
Radio interference level
EN 55022 Class B
Interference immunity
EN 50082-2
LS
DI
CD
DO
P
