Beijing Huahuan Electronics Co., Ltd.
4
H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
Metro
Ethernet
/ IP
FE
FE
BTS
PBX
Wireless
Transport
PCM
E1/T1
E1/T1
E1/T1
H0FL-
EthMux
H0FL-
EthMux
SA1601/SA1602
Computer
Local Ethernet
FE
FE
SA1601/SA1602
E1/T1
Figure 1.2-3 Typical application of H0FL-EthMux.SA1601/SA1602 in cable
network
In wireless network application, H0FL-EthMux.SA1601/SA1602 can
cooperate with wireless bridges from most manufacturers. At present, the
transmission bandwidth of wireless bridge sold in the market is changing with
the Ethernet packets; some bridges will introduce the packet delay jitter. When
working with different wireless bridges, E1/T1 signal packet length and jitter
absorption buffer size need to be adjusted to get the best transmission effect.
Warning: When this device is working with the wireless bridges, it
usually connects with outdoor wireless bridge antenna system through
Ethernet cable, thus there is a risk of lightning strike. At this time, Ethernet
lightning protection protector must be combined with the uplink network
cable; otherwise, the lightning will seriously damage device and pose threat
to the field staff!
1.3
Timing Modes
As
an
E1/T1
signal
transparent
transmission
device,
H0FL-
EthMux.SA1601/SA1602 does not only transfer E1/T1 data stream correctly to
the receiving end, but also recovers the E1/T1 data stream timing information of
sending end at the receiving end (E1/T1 output end) accurately. Normally, bi-
directional E1/T1 transmission signals are not necessary in the state of
