Specifications

Interfacing Diamond Lasers to Systems
37
Table 6. Signal Interface Description and Connector Pinout for GEM-30
PIN NO. SIGNAL DESCRIPTION
1 RF Enable
TTL logic input; 1=RF ON, 0=RF OFF; 1 kΩ impedance
This input turns on the laser. See also Pin 7, Control Enable, below.
2 SWR OK
TTL logic output; 1=SWR OK, 0=SWR Fault; I
OH
= -0.4 mA, I
OL
= 8 mA
Output is asserted when DC supply current (I
DD
) is below max. value.
3 LASER OK
TTL logic output; 1=LASER OK, 0=LASER Fault; I
OH
= -0.4 mA, I
OL
= 8 mA
Output is asserted when no faults (SWR, Temp. or Volt.) are detected.
4 Temperature OK
TTL logic output; 1=Temp OK, 0=Temp Fault; I
OH
= -0.4 mA, I
OL
= 8 mA
Output is asserted when temperature is below maximum value.
5 Voltage OK
TTL logic output; 1=Voltage OK, 0=Voltage Fault; I
OH
= -0.4 mA, I
OL
= 8 mA
Output is asserted when DC supply voltage (V
DD
) is below max. value.
6 Internal Coherent use. Must be grounded by OEM.
7 Control Enable
TTL logic input; 1=Laser Control Enabled, 0=Laser Control Disabled
This input must be asserted before RF enable can be used to turn on laser.
8 Customer Logic Ground for all interface signals
Notes:
1) Connector used is RJ-45 type.
2) These specifications are subject to change.