Extended Superframe Format - ADC HIGAIN HDSL2 Manual

152-231-116-01, Revision 01
•
FCON — This is the forced conversion setting.
to both the ACON and FCON settings for the CONV option. The responses are identical, except for 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.
respectively.
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-231 List 1F
Table 8 on page 21
Table 9 on this page and
CPE Transmit
SF
ESF
ESF
SF
Table 9. Extended SuperFrame Format
Framing Pattern
Sequence ((FPS) - 2 kb/s
0
0
1
0
1
1
October 2, 2000
lists the HiGain responses by case number
Table 10 on page 22 list the ESF and SF frame formats,
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 Cyclical Redundancy
(FDL) - 4 kb/s Check (CRC) Bits - 2 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
C1
C2
C3
C4
C5
C6
21