ADC HiGain H2TU-C-202 User Manual page 29

152-202-115-04, Revision 04
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FCON: This is the forced conversion setting.
and FCON settings for the CONV option. The responses are identical, except in cases 3 and 4. In these cases,
the FCON reply is attempting to force the network (or the far-end PM-NIU) to send ESF. It also alerts the
CPE with an AIS alarm pattern while forcing the ESF to the network. Continuity is maintained as for ACON.
Table 9 below and
Table 8. Response to H2TU-R DS1 Frame Conversion Options
Case Number NET Transmit
1 ESF
2 ESF
3 SF
4 SF
ESF Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
H2TU-C-202 List 1E
Table 10 on page 22 list the ESF and SF frame formats, respectively.
CPE Transmit
SF
ESF
ESF
SF
Table 9. Extended SuperFrame Format
Framing Pattern
Sequence (FPS) - 2 kb/s
0
0
1
0
1
1
April 21, 2000
Table 8 lists the HiGain HDSL2 responses to both the ACON
ACON Option
NET > CPE
NET < CPE
→
ESF SF
ESF ← SF
→
ESF ESF
ESF ← ESF
→
SF SF
ESF ← ESF
→
SF SF
SF ← SF
Frame Bits
Frame Bit for Datalink
(FDL) - 4 kb/s
m
m
m
m
m
m
m
m
m
m
m
m
Provisioning
FCON Option
NET > CPE
NET < CPE
→
ESF SF
ESF ← SF
→
ESF ESF
ESF ← ESF
→
SF AIS
ESF ← ESF
→
SF AIS
ESF ← SF
Cyclical Redundancy
Check (CRC) Bits - 2 kb/s
C1
C2
C3
C4
C5
C6
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