Satcom Resources WC1000 User manual

Metrodata WAN-in-a-CAN
WC1000 LAN Extender
Installation Guide
WC1000

INTRODUCTION
1
1 INTRODUCTION
1. 1 About the WC1000
The Metrodata WC1000 is a four port auto sensing 10/100BaseT Ethernet Switch with an E1
Uplink. The product can be used to extend four LAN ports across a WAN link to a remote
site. Each LAN port may be connected to a single LAN workstation or to a hub or switch
supporting multiple workstations. The exact configuration will depend upon the user’s
network design and workload characteristics.
The WC1000 Ethernet Switch can switch between local LANs connected to its four ports,
and the unit may thus reduce the need for local LAN hubs and switches. The Ethernet switch
has full wirespeed filtering so that the WAN port carries only traffic destined for the remote
WAN-linked site, and an efficient HDLC encapsulation of packets ensures maximum
throughput over the WAN link. There is internal packet buffering to smooth out bursty traffic.
WC1000’s are used in pairs, one on either side of a WAN link.
Figure 1. 1 WC1000 installation
WAN

INTRODUCTION
2
1. 2 Performance
Switching and filtering is performed at wirespeed: 148810 packets/second. The WC1000
can handle a traffic level of 4064 packets/second over the E1 link.
1. 3 Safety
The WC1000 should not be connected to cabling which would be required by BS6701 to be
equipped with over-voltage protection. The following ports are designated SELV (Safety
Extra Low Voltage) within the scope of EN41003:
E1 Line (or WAN) port (BNC or RJ45)
4 x 10/100 BaseT Ethernet ports
These ports should only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3.
1. 4 Electromagnetic Compatibility
In order to ensure EMC compliance all signal and data cables and connectors must use a
screened connector shell with a screened cable. The cable screen must be terminated to the
screened connector shell and not connected to any pins of the connector. Failure to use the
correct connector may compromise EMC compliance.
1. 5 EN55022 Declaration
The WC1000 is a Class A product. In a domestic environment it may cause radio
interference in which case the user may be required to take adequate measures.
1. 6 FCC Declaration
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radiocommunications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at its own expense.

WC1000 DESCRIPTION OF PARTS
3
2 WC1000 DESCRIPTION OF PARTS
2. 1 Rear panel
All connections into and out of the WC1000 are made through the rear panel which is shown
in schematic form below for both AC and DC powered models.
Figure 2. 1 WC1000 rear panels for AC & DC models
2. 2 Status display - rear panel
There is a status LED on the right hand side of the rear panel which indicates the status of
the unit as shown in the figure below.
Figure 2. 2 Rear panel status LED
2. 3 Status display - LAN ports
Each LAN port RJ45 connector on the rear panel has two miniature LEDs mounted on it. The
left hand (green) LED shows link activity, and the right hand (yellow) LED shows operation
at 100Mbps when it is illuminated.
Status LED Meaning
Off No mains power present
On Green Status OK
On Red E1 WAN port LOS Alarm
SUBSCRIBER PORT 10/100 BASE T
Green: Link/Act
Ye l l o w : S p e e d
Tx Rx
Line
Activity
1234
SUBSCRIBER PORT 10/100 BASE T
Green: Link/Act
Yellow: Speed
Tx Rx
Line
Activity
1234
Pin1
-48V
Pin3
0V
L
_
_

WC1000 DESCRIPTION OF PARTS
4
2. 4 Power Supply
The WC1000 is powered by a mains supply with an input voltage of 100-250VAC 50-60Hz
and with an input current of 60 to 24 mA, and an input power consumption of 6 watts
approximately.. The WC1000 is provided ex-factory with a 250mA internal fuse. Mains
power is connected via the IEC inlet on the rear of the unit.
An alternative -48VDC powered unit is available. The input voltage and current ranges are
minus 36 to 72 volts DC, 200 - 100mA. A Buccaneer type socket is fitted to the rear panel,
and a plug is provided with the unit for the customer’s own wiring. The connections are
labelled on the rear panel of the WC1000.
On some units, an additional Ground stud may be located on the rear panel to permit a
separate Ground connection to be made.
Figure 2. 3 -48VDC connections
Note: The WC1000 must be connected to mains safety earth for correct operation.
Excessive voltages are present inside the unit. There are no user serviceable parts inside
the unit, and the cover should not be removed by unqualified personnel. The unit must not
be exposed to damp or condensing conditions.
2. 5 Unbalanced BNC E1 Line port
The network is connected to the BNC connectors at the rear of the unit as shown below:
Figure 2. 4 BNC connection
Cable lengths should be restricted to those defined below. The total maximum attenuation
of each of the cables attached to the network port must not exceed 6dB when measured at
1⋅024 MHz. The frequency/attenuation characteristic of the cables attached to the network
port shall follow a root frequency law.
Figure 2. 5 Cable lengths
Pin no Connection
1-48VDC
2 Ground
30VDC
Pin Function
Tip Signal
Ring Shield
Cable Max Length (metres)
UR202 720
RG59U 600
BT2002 650
BT2003 680

WC1000 DESCRIPTION OF PARTS
5
2. 6 Balanced RJ45 E1 Line Port
The layout of the female RJ45 line or network port mounted on the rear panel is shown
below:
Figure 2.6 RJ45 network port layout
2 . 6. 1 Connecting to a terminal device
A connecting cable from the network port to a terminal port such as a router or a PABX is
straight through. Connections are defined in the table below.
Figure 2.7 Connection from WC1000 to terminal device
Pin Function
1Tx tip
2Tx ring
3Tx shield
4Rx tip
5Rx ring
6Rx shield
7Not connected
8 Not connected
DSU
port pin
DSU port
function
Terminal port
pin
Terminal port
function
1Tx tip 1Rx tip
2Tx ring 2Rx ring
3Tx shield 3Rx shield
4Rx tip 4Tx tip
5Rx ring 5Tx ring
6Rx shield 6Tx shield
7Not connected Not connected Not connected
8 Not connected Not connected Not connected

WC1000 DESCRIPTION OF PARTS
6
2 . 6. 2 Connecting to a network device
A connection from the network port to a network device such as an E1 line or an NTU
requires a crossover cable. Connections are defined in the table below.
Figure 2.8 Connection from WC1000 to network device
2 . 6. 3 RJ45 Connector layout
Figure 2.4 shows both the plug and socket head on so that any connecting wires are behind
the connector. The connector numbering is shown.
Figure 2.9 RJ45 layout
DSU
port pin
DSU port
function
Network port
pin
Network port
function
1Tx tip 4Rx tip
2Tx ring 5Rx ring
3Tx shield 6Rx shield
4Rx tip 1Tx tip
5Rx ring 2Tx ring
6Rx shield 3Tx shield
7Not connected Not connected Not connected
8 Not connected Not connected Not connected
1234567
8
8 7 6 5 4 3 2 1
LOCKING TAB

WC1000 DESCRIPTION OF PARTS
7
2 . 6. 4 Cable lengths and types
Cable lengths should be restricted to those defined below:
Figure 2.10 Cable lengths
Note: The total maximum attenuation of the cable attached to the network port must not
exceed 6dB when measured at 1⋅024 MHz. The frequency/attenuation characteristic of the
cables attached to the network port shall follow a root frequency law. This port type is
approved to CTR12, CTR13.
Cable Max Length
(metres)
Belden 8132 (28 AWG) 175
Belden 9841 (24 AWG) 300

WC1000 DESCRIPTION OF PARTS
8
2. 7 LAN ports
The four LAN ports are supported by an array of four RJ45 female connectors mounted on
the rear panel of the WC1000.
These ports automatically sense the LAN interface and switch between MDI and MDI-X
configurations. This removes the potential requirement for Crossover cables when
connecting LANs to the WC1000 whatever LAN equipment is being used. The ports also
automatically sense the LAN speed and operate at either 10 Mbps or 100 Mbps, and sense
whether operation should be in full or half duplex mode.
There is a miniature LED on the lower right corner of each RJ45 socket on the rear panel
which is illuminated yellow when operation is at 100 Mbps. The miniature LED on the lower
left corner of each RJ45 socket is illuminated green when the link is active.
The RJ45 connector layout for an auto-sensing MDI/MDI-X port is shown below:
Figure 2. 11 LAN port connector layout
The pin numbering for the connector is shown below:
Figure 2. 12 RJ45 connector layout
Pin No MDI Signal MDI-X Signal
1Tx Data +ve Rx Data +ve
2Tx Data -ve Rx Data -ve
3Rx Data +ve Tx Data +ve
4Not connected Not connected
5Not connected Not connected
6Rx Data -ve Tx Data -ve
7Not connected Not connected
8Not connected Not connected
8 7 6 5 4 3 2 1
LOCKING TAB

INSTALLATION & SET-UP
9
3 INSTALLATION & SET-UP
3. 1 Setting-up the bit-switches
The bit-switches on the base of the unit must be set-up before making any connections to
the unit. There is an explanatory label on the unit’s base which defines the bit-switch set-up
options and alarms.
Figure 3. 1 WC1000 Base Panel label
3 . 1. 1 Bit-switch definitions
The default settings of the bit-switch are shown in bold:
Figure 3. 2 Bit-switch definitions
Bit-switch Control On Off
1Timing mode Internal Loop
2E1 Port select BNC RJ45
3Loopback test None Remote
4Normal
5Normal
6Normal
7LAN Mode 100M FD Auto-negotiate
8Auto MDI/MDI-X Disabled Enabled
Serial No:
WC1000
LAN TO E1 CONVERTER (AC)
For product manual
and other information:-
www.metrodata.co.uk
Metrodata Ltd
TW20 8RY UK
Tel [phone]
Fax [phone]
17-08-299A
Part Number 80-05-541
OFF
ON
1 2 3 4 5 6 7 8
Bitswitch Control ON
1
2
3
4
5
6
7
8
Timing Mode
Internal
LAN Mode
Auto MDI / MDI-X
Port Select
BNC
Loopback
None
Normal
Normal
Normal
100 FD
OFF
Loop
RJ45
Remote
Auto-negotiate
Enabled
Disabled
Bold characters = Factory Default
Status LED
Off
On Green
On Red
Meaning
No mains power present
OK
WAN Port LOS