Huahuan Electronics H0FL-EthMux.SA1601 User manual

H0FL-EthMux.SA1601/SA1602
E1/T1 over Ethernet Converter
User’s Manual
Beijing Huahuan Electronics Co., Ltd.

H0FL-EthMux.SA1601/SA1602
E1/T1 over Ethernet Converter
User’s Manual
Beijing Huahuan Electronics Co., Ltd.
Version 1.3 (Nov. 2014)

Copyright Notice
The intellectual property rights of all parts of this product,
including accessories etc., are owned by Beijing Huahuan Electronics
Co., Ltd. (Beijing Huahuan for short). Without prior written consent of
Beijing Huahuan, no part of this document may be reproduced or
transmitted in any form or by any means. The information in this
document, including product specifications and information, is subject
to change without notice. For information related, please consult
Beijing Huahuan.
Copyright © Beijing Huahuan Electronics Co., Ltd. 2013 All rights
reserved
Product Name: H0FL-EthMux.SA1601/SA1602
E1/T1 over Ethernet Converter
Manual Version: 1.3
Release Date: Nov. 2014
BEIJING HUAHUAN ELECTRONICS Co., LTD.
Address: No.26, Shangdi 6th Street, Haidian District, Beijing, 100085
P.R. China
Tel: [phone]
Fax: [phone]
Website: www.huahuan.com
E- mail: [email protected]

Contents
1. OVERVIEW................................................................1
1.1 Introduction .......................................................................1
1.2 Typical Application ...........................................................2
1.3 Timing Modes ....................................................................4
2. SYSTEM ARCHITECTURE .....................................7
2.1 Function Introduction.......................................................7
2.2 Front Panel Arrangement.................................................8
2.2.1 Diagrams of Front Panels...............................................8
2.2.2 LED Functional Description...........................................9
2.2.3 DIP Switch ...................................................................11
2.2.4 E1/T1 Interface.............................................................12
2.2.5 Ethernet Port.................................................................13
2.2.6 Power Switch and Power Socket..................................15
3. INSTALLATION.......................................................15
3.1 Electrical Installation......................................................15
3.1.1 Power Connection ........................................................15
3.1.2 E1/T1 Interface Connections........................................16
3.1.3 Ethernet Cable/Optic Fiber Connections......................16
4. USAGE AND MAINTENANCE ..............................18

4.1 Troubleshooting...............................................................18
4.1.1 PWR FAIL LED on......................................................18
4.1.2 SYS LED Doesn’t Blink ..............................................18
4.1.3 Ethernet Electrical Port LINK LED off........................18
4.1.4 Ethernet Optical Port L/A LED off or OLOS LED on.19
4.1.5 E1/T1 Interface Alarm LED ON..................................19
4.1.6 Two Ends of Devices Cannot Connect.........................20
4.1.7 Both Sides E1/T1Terminals Have Slips.......................20
5. DEVICE MONITORING .........................................21
5.1 System Info.......................................................................22
5.2 Alarm State ......................................................................22
5.2.1 E1 Channel State ..........................................................22
5.2.2 Ethernet Port State........................................................23
5.2.3 Power State...................................................................23
5.2.4 Alarm Log ....................................................................24
5.3 Alarm Management.........................................................24
5.3.1 Alarm Shielding Management......................................24
5.4 ETH Management ...........................................................25
5.4.1 Ethernet Port Management...........................................25
5.4.2 Ethernet Senior Management .......................................27
5.4.3 VLAN Management.....................................................28
5.5 E1 Management...............................................................32
5.5.1 E1 Service Management...............................................33
5.5.2 E1 Senior Management ................................................33
5.5.3 Error Test......................................................................36
5.6 SNMP Management ........................................................37

5.7 System Configuration......................................................38
5.7.1 System Time Management...........................................39
5.7.2 Password Management.................................................39
5.7.3 Default Parameter Recovery.........................................40
5.7.4 Upgrade Online ............................................................42
5.7.5 Reboot Device..............................................................44
6. TECHNICAL SPECIFICATIONS ..........................45
6.1 System Parameters..........................................................45
6.2 E1/T1 Interface Features ................................................45
6.3 Ethernet Port....................................................................45
6.4 Power Supply...................................................................46
6.5 Operating Environment..................................................46
6.6 Dimensions .......................................................................46
6.7 Weight...............................................................................46
APPENDIX ACRONYMS AND ABBREVIATION................47

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 1
1
1. .

 O Ov ve er rv vi ie ew w
1.1 Introduction
Thank you for choosing the H0FL-EthMux.SA1601/SA1602 E1/T1 over
Ethernet Converter designed and made by Beijing Huahuan Electronics Co., Ltd.
This converter encapsulates data of E1/T1 stream in the data packet, supports
SAToP protocol and UDP/IP packet mode; realizing transportation of 1~2 E1/T1
service over 1 FE port. In the same Ethernet segment, routers or layer-3 switch
can be used to cross the Ethernet segment to realize interconnection within IP
network, so as to build carrier-class E1/T1 channels. In addition, H0FL-
EthMux.SA1601/SA1602 device also supports 2 local Ethernet data access; its
internal QoS can set the priority of local Ethernet lower than that of E1/T1 data,
so as to ensure the E1/T1 signal priority transmission.
H0FL-EthMux.SA1601/SA1602 has many optional parameters which can be
modified by users to suit different application requirements. Please read this
manual carefully before using the product.
Features of H0FL-EthMux.SA1601/SA1602:
H0FL-EthMux.SA1601 provides 1 E1/T1 over 1 Ethernet adaptation,
H0FL-EthMux SA1602 provides 2 E1/T1 over 1Ethernet adaptation;
Provides 4 100Base-Tx electrical ports (2 for uplink, 2 for local data, 1
local data port can be used as monitoring port) and 1 100Base-Fx Ethernet
optical port can be used for uplink or local data;
Supports E1 circuit emulation service on Ethernet links, supports SAToP
protocol, Ethernet encapsulation supports IP/UDP, supports E1 QoS;
E1 clock supports 3 modes: local clock, adaptive and loopback;

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2H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
2 uplink Ethernet electrical ports support 1+1 hitless protection;
Ethernet built-in layer 2 switch, supports VLAN (802.1Q based and QinQ
based), QoS (port based, 8021.1P based and TOS based); supports port
speed limit, flow control, MAC address automatic learning and MAC
address aging time setting;
Supports 120Ω_E1/100Ω_T1 interface in the form of RJ-48C, which can be
changed into 75Ω unbalanced interface through the dip setting of bottom
and proprietary cable, so as to realize the impedance matching;
High transmission efficiency, low transmission delay;
The clock reconstruction frequency is stable, jitter and wander are low;
Resists to packet loss, no frequency jump, supports frame synchronization
protection;
Supports buffer absorption function to resist packet delay variation (PDV);
Web server NM is supported to realize remote monitoring, it’s easy to
operate and maintain;
Supports SNMP network management protocol (V2);
Supports local and remote software and hardware online upgrade;
Supports SNTP network time setting;
Supports software test E1 error.
1.2 Typical Application
H0FL-EthMux.SA1601/SA1602 device can interconnect with CO
aggregation E1 over Ethernet interface converter H0FL-EthMux.SA63, making
point-to-multipoint application. And can also make point to point connection to
realize interconnections within the same Ethernet sub-network, such as used in

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 3
the interconnection of wireless bridge, or using routers or layer-3 switch to cross
the Ethernet segment to realize interconnection within the IP network. Typical
applications are shown in Figure 1.2-1~Figure 1.2-3.
Ethernet/IP
GE
EthMux-SA63
FE
16×E1
…
STM-1
(63×E1)
FE
FE
FE
FE
EthMux-SA(P)16
EthMux-SA1608
8×E1
4×E1
2×E1
1×E1
EthMux-SA1604
EthMux-SA1602
EthMux-SA1601
FE
FE
FE
FE
FE
FE
Figure 1.2-1 Typical application of H0FL-EthMux.SA1601/SA1602
interconnected with aggregation device
Computer
BTS
PBX
Wireless
Transport
PCM
E1/T1
Uplink
FE Uplink
FE
E
1/T1
E1/T1
E1/T1 H0FL-
EthMux
SA1601/SA1602
H0FL-
EthMux
Local Ethernet
FE
FE
SA1601/SA1602
Figure 1.2-2 Typical application of H0FL-EthMux.SA1601/SA1602 in wireless
network

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4H0FL-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

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 5
synchronization. In other words, although the signals coming in and going out of
the same E1/T1 interface are nominal bit rate, there can be 100ppm frequency
difference between them. In this case, the receiving end must reconstruct timing
mode according to E1/T1 stream transferred from peer end, this process is
Adaptive Timing mode. H0FL-EthMux.SA1601/SA1602 uses timing recovery
technique; the output E1/T1 has low jitter and high frequency stability; typical
frequency offset is within 5ppm and clock jitter is below 0.1UI, which can meet
most applications,
Because IP network transmission data packets have great randomness,
although the adaptive timing can restore the clock with high stability and low
jitter, the longtime wander is big. The wander does not affect the normal work of
the reception device which adopts the slave timing mode, but for some
applications, such as switches using the internal clock, may cause the overflow
of the frame memory in input port, thus the slip frame will occur.
Therefore, H0FL-EthMux.SA1601/SA1602 provides another timing mode,
loopback timing mode. In this mode, H0FL-EthMux.SA1601/SA1602 uses the
clock extracted from E1/T1 input port signal to reconstruct E1/T1 output stream,
the wander formed in network transmission can be absorbed completely by
internal memory of H0FL-EthMux.SA1601/SA1602. Once the input signal loss
fault, it will automatically switch to adaptive timing. H0FL-
EthMux.SA1601/SA1602 provides two kinds of timing modes.
H0FL-EthMux
IN
OUT
Timing
Recovery
Adaptive Timing
H0FL-EthMux
IN
OUT
Timing
Extraction
Buffer
Cache
E1/T1
Interface
E1/T1
Interface
Loopback Timing
Figure 1.3-1 Timing modes

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6H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
Choosing proper timing mode is important for ensuring service quality. In
most cases, setting both devices to adaptive timing mode is sufficient. But
sometimes, setting one device to loop timing mode may work better. For
example, setting the H0FL-ETHMUX.SA1601/SA1602 device connected with
the master clock (such as switch) to loop back mode, and the other device
connected with the slave clock (such as PBX remote module or PCM terminal)
to adaptive mode, is probably better than setting both to adaptive modes. It’s
better to set the both sides H0FL-ETHMUX.SA1601/SA1602 to loop back
timing mode when the both sides devices use synchronous master clock, such as
the switches with independent clock distribution network interconnect with each
other. In another case, set both sides H0FL-ETHMUX.SA1601/SA1602 to
adaptive timing mode when the both sides’ devices use asynchronous master
clock, at this time, slips will occur.
Note that one typical error in applications is to let both communication
devices (such as PCM terminal) work at slave clocks. Neither transmission
devices nor H0FL-EthMux.SA1601/SA1602 device will support such operation.
Tip: At the beginning of startup, the clock usually takes several
minutes to be locked. During that period, errors and slips are normal.
Various timing schemes are listed in Table 1.3-1, which can be selected
according to the device interconnection shown in Figure 1.3-2.
H0FL-
EthMux H0FL-
EthMux
E1/T1 E1/T1
FE FE
A side
device B side device
A side B side
Ethernet or IP
Figure 1.3-2 Diagram for device interconnection

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 7
Table 1.3-1 Timing mode schemes
A side
device clock
mode
B side device
clock mode
A side
EthMux
timing mode
B side
EthMux
timing mode
Remark
Master clock
Master clock
Loopback
Loopback
Device clocks at
A and B sides
are synchronous
Adaptive
Adaptive
Master clock
Master clock
Adaptive
Adaptive
Device clocks at
A and B sides
are respectively
independent
Master clock
Slave clock
Loopback
Adaptive
-
Adaptive
Adaptive
Slave clock
Master clock
Adaptive
Loopback
-
Adaptive
Adaptive
Slave clock
Slave clock
-
-
Not allowed
2
2. .

 S Sy ys st te em m A Ar rc ch hi it te ec ct tu ur re e
2.1 Function Introduction
H0FL-EthMux.SA1601/SA1602 is built on TDM/Packet processing unit. It
truncates E1/T1 data stream and encapsulates the data into Ethernet packet; and
then sends the packed MAC frame to the Ethernet exchange unit via MII
interface; finally, accesses to Ethernet network through uplink Ethernet ports.
The receiving end sends Ethernet data packets carried with E1/T1 data to
the TDM/Packet processing unit via MII interface. The processing unit will
reassemble the receiving packets to recover the original E1/T1 data stream and
outputs it via E1/T1 interface unit. TDM/Packet processing unit needs to process

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8H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
the reassembled data regularly, so as to recover bit rate, jitter and wander index
of E1/T1 stream to meet the requirements of TDM signals.
Users can set various operational parameters of H0FL-
EthMux.SA1601/SA1602 through Network Management.
2.2 Front Panel Arrangement
2.2.1 Diagrams of Front Panels
All service interfaces, power ports, indicators and dips are on the front
panel of H0FL-EthMux.SA1601/SA1602 device. The equipment type is stuck to
the upper cover. Front panels of H0FL-EthMux.SA1601/SA1602 are shown in
Figure 2.2-1~Figure 2.2-4 (not in the exact proportion, some interfaces and
LEDs are added or removed according to selection of actual devices).
100FX
L/A
OLOS
MASK
TMP_IP
SYS
Data2/NM
RLB
LLB
FAR-END
UP
PKTLOS
LOS/AIS
E1/T1
Data1
Uplink2
Uplink1
-
+
DC 48V
o
1
1
Figure 2.2-1 Front panel of H0FL-EthMux.SA1601 (-48V DC)
100FX
L/A
OLOS
MASK
TMP_IP
SYS
Data2/NM
RLB
LLB
FAR-END
UP
PKTLOS
LOS/AIS
AC220V
E1/T1
Data1
Uplink2
Uplink1
1
Figure 2.2-2 Front panel of H0FL-EthMux SA1601 (220V AC)
100FX
L/A
OLOS
MASK
TMP_IP
SYS
Data2/NM
RLB
LLB
1FAR-END
UP
PKTLOS
LOS/AIS
2
E1/T1 E1/T1
Data1
Uplink2
Uplink1
-
+
DC 48V
o
1
Figure 2.2-3 Front panel of H0FL-EthMux SA1602 (-48V DC)

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 9
100FX
L/A
OLOS
MASK
TMP_IP
SYS
Data2/NM
RLB
LLB
1FAR-END
UP
PKTLOS
LOS/AIS
AC220V
2
E1/T1 E1/T1
Data1
Uplink2
Uplink1
Figure 2.2-4 Front panel of H0FL-EthMux SA1602 (220V AC)
2.2.2 LED Functional Description
LED functional descriptions of H0FL-EthMux.SA1601/SA1602 are shown
in Table 2.2-1.
Table 2.2-1 LED functional descriptions
Label
Color
Num
Functional descriptions
Remark
SYS
Green
1
System working state
instructions:
Blink: running normal
On: system is on configuration
or running abnormally
Off: system does not work or
works abnormally
PWR
FAIL
Red
1
The power failure alarm
instructions:
On: power supply board is not
plugged in or the power supply
hasn’t been accessed
Off: normal
L/A
Green
1
Ethernet optical port
connection state instructions:
On: connected with remote
Ethernet optical port
Off: not connected with
Ethernet optical port
Ethernet
optical
port
indicators

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10 H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
OLOS
Red
1
Ethernet optical port receiving
no light instructions:
On: no light receiving
Off: receiving normally
(Ethernet
electrical
port
LINK)
Green
4
Ethernet electrical port state
instructions:
On: Link normally
Blink: data
transmitting/receiving
Off: Link abnormally
One link
indicator
on the left
of each
Ethernet
electrical
port
socket
(Ethernet
electrical
port
FDX)
Yellow
4
Ethernet electrical port rate
instructions:
On : rate is HULL
Off : rate is HALF
One FDX
indicator
on the
right of
Ethernet
electrical
port
socket
FAR-
END UP
1~2
Green
2
1st~2nd channels of E1/T1
addressing the remote device
link state instructions:
On: addressing the remote
MAC address
Off: unaddressing the remote
MAC address
PKT
LOS
1~2
Red
2
E1/T1 service lost package
instructions in Ethernet link:
On: cannot receive the E1/T1
remote package
Blink: remote E1/T1 lost
package or disorderly sequence
Off: remote E1/T1 no lost
package or disorderly sequence

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H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3 11
LOS/AIS
1~2
Red
2
E1/T1 port alarm state
instructions:
On: LOS alarm
Regular slow blink: AIS alarm
Irregular fast blink: receive
E1/T1 signal with wrong
HDB3 code
Off: no alarm
2.2.3 DIP Switch
There is a 4-position DIP switch on the front panel of H0FL-
EthMux.SA1601/SA1602; the definition is show in Table 2.3-2.
Table 2.3-2 DIP switches definition on the front panel of H0FL-
EthMux.SA1601/SA1602 device
DIP
Label
Definition
DIP-1
LLB
E1/T1 port Tx to Rx loop back:
ON: set local E1/T1 port Tx to Rx loop back
OFF: cancel local E1/T1 port Tx to Rx loop back
DIP-2
RLB
E1/T1 port Rx to Tx loop back:
ON: set local E1/T1 port Rx to Tx loop back
OFF: cancel local E1/T1 port Rx to Tx loop back
DIP-3
MASK
Alarm mask setting:
ON: set local alarm mask
Off: cancel local alarm mask
DIP-4
TMP_IP
IP setting:
ON: restore default IP address 192.192.192.192
OFF: use the IP address set by user
Note: 1) Dial down TMP_IP dip, 5 minutes later, no matter whether the user
dials it up, it will return to the original user Settings IP
2) Dial down all the 4 dips, power failure will recover the default
setting of the factory, but keep the current IP address, MAC address

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12 H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
There is a 4-position DIP switch on the bottom of device, which can be
used to control E1/T1 interface impedance and 75 Ω unbalanced interface shell
grounding; definitions are shown in Table 2.2-2.
Table 2.2-2 DIP switches definition on the bottom panel of H0FL-
EthMux.SA1601/SA1602
DIP
Definition
1st
ON: the 1st E1/T1 Interface impedance is 75 Ω
OFF: the 1st E1/T1 Interface impedance is 120Ω-E1/ 100Ω-T1
2nd
ON: the 1st E1/T1 Interface shell grounding
OFF: the 1st E1/T1 Interface shell suspended
3rd
(supported
by SA1602)
ON: the 2nd E1/T1 Interface impedance is 75 Ω
OFF: the 2nd E1/T1 Interface impedance is 120Ω-E1/ 100Ω-T1
4th
(supported
by SA1602)
ON: the 2nd E1/T1 interface shell grounding
OFF: the 2nd E1/T1 interface shell suspended
2.2.4 E1/T1 Interface
H0FL-EthMux.SA1601 provides 1 channel of 120Ω-E1/100Ω-T1 balanced
interfaces and uses RJ-48C socket; H0FL-EthMux SA1602 provides 2 channels
of 120Ω-E1/100Ω-T1 balanced interfaces and uses dual-E1 socket. Pin orders of
RJ48-C and dual-E1 connectors, and socket signals are defined as follows.
8
1
Figure 2.2-5 Pin orders of RJ48-C and dual-E1 connectors