Huahuan
Beijing Huahuan Electronics Co., Ltd.
TDMUX-16 User Manual V1.2
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11-
8/16 E1/T1 Ports Supported. E1 ports impendence are E1-120
Ω
for twisted
pair cables or 75
Ω
for coax. The E1-120
Ω
RJ45 sockets are default for ports.
The E1-120
Ω
connection cable is made with RJ45 connectors and a length of
4-pair twisted cable. The cable is not provided with the equipment, and the user is
responsible for making such cables in the field with length suitable for a particular
installation. The signal definition is given in Table 3.2.2-1, and pin order is depicted
in Fig. 3.2.2-1. Note that pin-1 and pin-2 should use the same twisted pair, so should
pin-4 and pin-5.
E1/T1 service can set the actual service quantity by NMS, set the exact E1 E1/T1
channels received by local equipment from remote equipment, realizing E1/T1
service one point to multi-point unidirectional transmission function.
By NMS, E1ports provide local loop back and remote loop back, 8 E1 ports loop
back can be set independently, and by the dip RA on front panel E1 indicators can
be controlled to indicate local or remote ports LOS and AIS status. The local and
remote loop back definition is shown as Fig 3.2.2-3:
Fig 3.2.2-3 E1 loop back
Rx
Æ
Tx can test E1/T1 connection cable, and Tx
Æ
Rx is used to test the whole
circuit including H0FL-ETHMUX V16 in the two endss and the link between them.
3.2.3
Ethernet/optic fiber connection
H0FL-ETHMUX V16 provides 5 standard RJ45 Ethernet interface and a LC optical
interface for connection with the transmission network, such as wireless Ethernet
bridge interface; or access to a local Ethernet port, such as switch and so on. Any
Ethernet electrical interfaces can be used for Web Server or SNMP management and
device software and hardware upgrades.
Ethernet Optical adopts SFP integrated optical modules, marked with
（
Æ
for the
optical signal input. marked with
（
Å
for the optical signal output. Optic fiber
access though patch cord. Connect the plug socket when the optical module should
be made to plug into the socket pin on the positioning of the corresponding gaps,
and plug in place. Patch cord bending radius is no less than 50mm. Plug optical
connector, not directly pulling fiber. Please keep the socket on the SFP protection
plug, no plug inserted optical fiber, be sure to protect plugs, prevent dust entering.
Note: 1. This equipment Ethernet electrical interface with the HP auto-MDIX
feature that automatically detect network cable transmitting/receiving sequence and
then adapting, both of MDI and MDI-X Ethernet interface, both crossover cable or
straight cable can be used.
