System Installation Manual
Digital Key Telephone System
Arista Systems Corporation
21
28
DV
4.10 D4VSCA
（
（
（
（
Voice Service Card
）
）
）
）
Figure 10: DV-28 Voice Service Card (D4VSCA/B)
1. For
D5MBUA
connection.
2. LED
：
To indicate the
channel 1
is working when LED is blinking.
3. LED
：
To indicate the
channel 2
is working when LED is blinking.
NOTE
：
：
：
：
D4VSCA (Voice Service Card) consisting of 2 voice channel (60 seconds per channel)
D4VSCB (Voice Service Card) consisting of 1 voice channel (60 seconds per channel)
D4VSCC (Voice Service Card) consisting of 2 voice channel (60 seconds per channel)
with Fax detection function
2
3
1
Summary of Contents for DV-28
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