Shenzhen Comark Technology Co., Ltd Innovation Quality Service
4 5 6
Appearance
Transmitter
Receiver
Indicators
LED
Status
Description
Off
No power supply or failure
PWR
On Power
is
on
Blinking
TTL/HTL high and low level
transformation
Off
TTL/HTL receiving low level
T1-4
On
TTL/HTL receiving high level
Transmitter
LED
Status
Description
Off
No power supply or failure
PWR
On Power
is
on
Off
Receiving optical signals
On
No receiving optical signal
RX1-4
Blinking
Optical signal alternate
changing
Receiver
Terminal Resistor
Resistor is to eliminate the effect of the signal reflected in
communication cable, as needed in the two end nodes of
the cable connection. Generally in high-speed
long-distance transmission, need to add the appropriate
terminal resistance at the two end of the cable, and let the
transmission line impedance matching. The terminal
resistance value in ohms (120-250), commonly associated
with transmission wire used.
Connection Method
1. Signal cable wiring methods: Encoder TTL /HTL optical
fiber converter is five-terminal; TTL/HTL electrical signal
input connected from the transmitting the pin T1/ T2 / T3 /
T4, signal by electrical transform to optical and send to the
receiving end equipment. TTL/HTL electrical signal restore
output at the receiving end T1 / T2 / T3 / T4. Feet T5 is
TTL/HTL electrical signal reference ground GND.
2. This equipment is belong to optical fiber transmission
products, the sending signal and receiving signal based on
optical definition. Please note that the transmitter receives
TTL/HTL electrical signals, after optical fiber transmission,
and the receiving end to restore the need of TTL/HTL
electrical signals.
Transmitting End: INPUT
T1 T2 T3 T4
GND
Tra
ns
mit
T1
signal
receive
T2
signal
receive
T3
signal
receive
T4
signal
receive
Ground
wire
Receiving End: OUTPUT
T1 T2 T3 T4
GND
Rece
ive
T1
signal
output
T2
signal
output
T3
signal
output
T4
signal
output
Ground
wire
1. Optical Connection: Fiber must be direct connection, that
is, TX end connect to the RX end. The encoder TTL/HTL
signal optical fiber converter must be used in pairs. As
shown in the figure below:
2. Power supply connection methods: This device support
dual power supply redundancy input, V1+, V2+ respectively
connect to the positive power supply (DC18 ~ 36 v), COM
connect to the negative power supply (dual power sharing).
Work can also pick up one of these power supplies. As
shown in the figure below:
