ADC HiGain H2TU-C-388 List 1E User Manual page 31

152-388-115-03, Issue 03
If an ESF is received from the CPE, it is passed to the network, and the network's inbound framing is passed
on to the CPE.
•
FCON: This is the forced conversion setting.
ACON 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 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-388 List 1E
Table 8
Table 10 on page 24 list the ESF and SF frame formats, respectively.
CPE Transmit
SF
ESF
ESF
SF
Table 9. Extended SuperFrame Format
Framing Pattern Frame Bit for Datalink
Sequence (FPS) - 2 kb/s
0
0
1
0
1
1
April 21, 2000
below lists the HiGain HDSL2 responses to both the
ACON Option FCON Option
NET > CPE NET > CPE
NET < CPE NET < CPE
→
ESF SF ESF
ESF ← SF ESF ← SF
→
ESF ESF ESF
ESF ← ESF ESF ← ESF
→
SF SF SF
ESF ← ESF ESF ← ESF
→
SF SF SF
SF ← SF ESF ← SF
Frame Bits
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
→
SF
→
ESF
→
AIS
→
AIS
C1
C2
C3
C4
C5
C6
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