Holland Electronics NE 1101L - Manual (Page 17)

- 17 -
Forward Optical Receiver Operation Manual
Line
#
Heading
(Column 1 – 16)
Alarm
Indicator
(note*)
(column
17-19)
Value
Display
Format
(column
20-30)
Unit
(column
31-33
1 OPT CHA dd.d mW and dBm
2 OPT CHB dd.d mW and dBm
3 RF LVL +dd.d dB
4 GAIN CTRL LVL dd.d V
5 12V CURRENT dd.d A
6 24V CURRENT dd.d A
7 24V DC dd.d V
8 12V DC dd.d V
9 5V DC dd.d V
10 ID CODE FFFF
11 FIRMWARE VER d.dd
12 <CR><LF><CR><LF>
Note1: In normal condition, the alarm indicator field should remain blank.
Any “A” in the field indicates the associated value is in alarm condition.
Note2: In shutdown mode, the data in line 1 through 9 are invalid.
And for a single pump model, all pump2 entries are skipped.
Note3: ID CODE display FFFF for Hexadecimal.
TABLE 2: Response to Command S
The following table defines all types of alarm message used in the response A. One line of alarm text
will be returned for each type of existing alarm(s) in the unit. Each line is ended with one set of
<Carriage Return> and <Line Feed>, and the whole message block is terminated with TWO set of
<CR><LF>.
Alarm
# Alarm Text
(column 1-50)
Remark
1 NO ALARM
2 CHA LOSS OF OPTICAL POWER
3 CHB LOSS OF OPTICAL POWER
4 LOSS OF RF SIGNAL
5 LOSS OF PILOT TONE
6 24VDC VOLTAGE ALARM
7 12VDC VOLTAGE ALARM
8 5VDC VOLTAGE ALARM
9 24VDC CURRENT ALARM
10 12VDC CURRENT ALARM
TABLE 3: Response to Command A
The following table defines the response B format.
Byte
#
Content
Translation
formula Remark
0 <C0> Leading marker
(C0 in hexadecimal)
1 OPT CHA 1 = 0.02 mW Range: 0 – 255
2 OPT CHB 1 = 0.02 mW Range: 0 – 255
3 RF LVL Scalar 1=0.1dB Range: (nagtive99) to 99
4 GAIN CTRL LVL 128 = 10 V Range: 0 – 255