Transition Networks CEMTF1014-100, CEMTF1029-101, CEMTF1015-100, CEMTF1029-103, CEMTF1029-100 User Manual
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User’s Guide
CEMTF10xx-10x
Slide-in-Module Device
E&M 2/4 Wire to Fiber
Transition Networks CEMTF10xx-10x series E&M 2/4
Wire-to-Fiber Device connects central-office voice
grade signals to distant PBX (Private Branch eXchange)
equipment utilizing E&M signaling. The Device provides
complete electrical isolation for 2- or 4-wire voice path
cable in areas of high electrical noise or where high
security is required.
Product Number Port One - Copper Port Two - Fiber-Optic
CEMTF1011-100 RJ-45
5 km (3.1 miles)*
ST, 1300 nm multimode
2 km (1.24 miles)*
CEMTF1013-100 RJ-45
5 km (3.1 miles)*
SC, 1300 nm multimode
2 km (1.24 miles)*
CEMTF1014-100 RJ-45
5 km (3.1 miles)*
SC, 1310 nm single mode
20 km (12.4 miles)*
CEMTF1015-100 RJ-45
5 km (3.1 miles)*
SC, 1310 nm single mode
40 km (24.9 miles)*
* Typical maximum cable distance. Actual
distance is dependent upon the physical
characteristics of the network
installation.
CEMTF10xx-10x in the Network . . .2
Installation . . . . . . . . . . . . . . . . . . . . .3
Operation . . . . . . . . . . . . . . . . . . . .13
Cable Specifications . . . . . . . . . . . . .15
Technical Specifications . . . . . . . . . .16
Troubleshooting . . . . . . . . . . . . . . . .17
Compliance Information . . . . . . . . .18
Part Number Port One - Copper Port Two - Fiber-Optic
single-fiber single mode
CEMTF1029-100 RJ-45
5 km (3.1 miles)*
SC, 1310 (TX) / 1550 (RX) nm
20 km (12.4 miles)*
CEMTF1029-101 RJ-45
5 km (3.1 miles)*
SC, 1550 (TX) / 1310 (RX) nm
20 km (12.4 miles)*
CEMTF1029-102 RJ-45
5 km (3.1 miles)*
SC, 1310 (TX) / 1550 (RX) nm
40 km (24.8 miles)*
CEMTF1029-103 RJ-45
5 km (3.1 miles)*
SC, 1550 (TX) / 1310 (RX) nm
40 km (24.8 miles)*
CEMTF1029-102 and -103 are intended to be installed in the same network.
CEMTF1029-100 and -101 are intended to be installed in the same network.
2
CEMTF10xx-10x
24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
CEMTF10xx-10x in the Network
Install two CEMTF10xx-10x series Devices in series to extend, over fiber, the distance
between two voice path communication devices. An E&M signal is used to
communicate between a CO (telephone company C
entral Office) device and a PBX
(Private Branch eXchange) device. An RJ-45 female connector provides the electrical
interface between the Device and the communication device.
A fiber optic cable extends the distance between the two devices by up to 40 Km.
The fiber optic cable is not susceptible to lightning impulse noise and, since signal
ground is not carried over the link, the signal is not affected by elevated ground
potential between locations.
(These models are intended for on-premise applications. Therefore, no provision for sealing
the currents is provided.)
In order to transmit the voice signal from one communication device to the other, the
Device connected to the CO device is configured to emulate the PBX device.
Conversely, the Device connected to the PBX device is configured to emulate the CO
device.
CEMTF10xx-100
Configured to emulate
the PBX device ("Side A")
CEMTF10xx-100
Configured to emulate
the CO device ("Side B")
PBX device
("Side A"
)
CO device
("Side B")
“Side A” and “Side B”
The term “Side A” is used to refer to a PBX device and “Side B” is used to refer to a
CO device. Therefore, the network described above contains the following
components
• A CO device (“Side B”).
• A CEMTF10xx-10x configured to emulate the PBX device (“Side A”).
• A CEMTF10xx-10x configured to emulate the CO device (“Side B”).
• A PBX device (“Side A”).
The table at the top of page 3 lists the common terminology used to describe “Side
A” and “Side B” of an E&M interface (i.e, the interface between the communication
device and the CEMTF10xx-10x Device).
3
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PBX Device (Side A) CO Device (Side B)
ANSI Customer Installation (CI) Network (N)
Telicordia Connecting Equipment DLC System
Lucent Trunk Side Signaling Side
Installation
CAUTION: Wear a grounding device and observe electrostatic discharge precautions
when setting the jumpers and when installing the CEMTF10xx-10x Device. Failure to
observe this caution could result in damage to, and subsequent failure of, the Device
slide-in-module.
Setting the Jumpers
The CEMTF10xx-10x Device has five jumpers that are located on the circuit
board. One jumper (J2) is used to set the Device for 2-wire or 4-wire mode. The
other four jumpers (J1, JP1, JP2, JP3) are used to configure the Device for the five
E&M signal types (Type I, II, III, IV, and V). The specific settings for the 2-wire, 4-wire
mode and each of the E&M signal types (including a “No Signaling” setting). The
drawing below shows the locations of the five jumpers on the circuit board. Use a
pair of small needle-nosed pliers to set the jumpers.
E&M Signal Types
The CEMTF10xx-10x Media Converer can be set for the five different E&M signal
types (Type I, II, III, IV, and V). Each signal type has a different wiring arrangement, hence
a different approach to transmitting the E&M supervision signals (on-hook / off hook
signaling). The Device is configured for the various signal types by setting the jumpers
located on the Device circuit board.
The jumper configurations for the various signal types are detailed in the Installation
section of this manual.
JP1
JP2
J2
J1
JP3
4
CEMTF10xx-10x
24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
The figure below is a connection diagram for the 2-wire and 4-wire settings. For
the 2-wire interface, the send and receive paths for the audio signals are
transmitted over a single pair of wires: Tip (4) and Ring (5). For the 4-wire
interface, the send and receive paths for the audio signals are in separate paths.
The send path is via the Tip (4) and Ring (5) wires while the receive path is via the
Tip-1(1) and Ring-1 (2) wires.
Note: Even though an E&M circuit may be classified as “4-wire”, it is likely to have
six or eight physical wires, depending on the signaling type and audio
implementation that are used.
RJ-45 Connnector
An understanding of the RJ-45
connector pins will provide
insight into how the
communication signals are
transmitted between the
CEMTF10xx-10x Device and
the communication devices via
the copper cable. The drawing
to the right identifies the 8 pins
within the RJ-45 connector.
Ring-1 (2)
Ring (5)
Tip-1 (1)
Receive
Circuit
Tip (4)
Hybrid
Tx
Rx
Connect 3 and 4 for the 4-wire setting
Connect 1 and 2 for the 2-wire setting
1
3
2
J2
4
output (4W)
or
input / output (2W)
input only
Audio interface (2-wire / 4-wire)
There are two types of audio interfaces: 2wire and 4-wire; which describe the number
of wires used to transmit audio signals. The
figure to the right illustrates the jumper
configurations for the 2-wire and 4-wire
implemetations.
Note: The jumper for the 2-wire or 4-wire setting (J2) must be set for any of the
E&M Signal Types described on pages 5-10.
J2
1
3
2-Wire
2
4
J2
1
3
4-Wire
2
4
Pin4 (Tip)
Pin3 (E)
Pin2 (Ring-1)
Pin1 (Tip-1)
Pin5 (Ring)
Pin6 (SG)
Pin7 (M)
Pin8 (SB)
5
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No Signaling
A “No Signalling” configuration is used for a leased line operation. Set the jumpers on
the “Side A” Device and the “Side B” Device as follows:
E (3)
Chassis
SG (6)
M (7)
SB (8)
Chassis
E (3)
SG (6)
M (7)
SB (8)
RJ-45 Pins
Jumper settings for: "Side A" Media
Converter
"Side B" Media
Converter
Connection diagrams for: "Side A" device
or: "Side A" Media Converter
"Side B" Media Converter
"Side B" device
JP1
1
3
1
J1
596
29
17
30
26
22
18
14
10
1
J1
596
29
17
30
26
22
18
14
10
JP2
1
3
JP3
1
3
JP1
1
3
JP2
1
3
JP3
1
3
The figure below illustrates the wiring connections for the “Side A” and “Side B”
devices that have been configured for no signaling. Note that there is no E&M
signaling between the two devices.
6
CEMTF10xx-10x
24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
E&M Signal Type I
E&M Signal Type I is the most common interface in North America. Set the
jumpers on the “Side A” and “Side B” Devices as follows:
-48V
E (3)
Chassis
SG (6)
M (7)
SB (8)
Chassis
E (3)
SG (6)
M (7)
SB (8)
Jumper settings for: "Side A" Media
Converter
"Side B" Media
Converter
Connection diagrams for: "Side A" device
or: "Side A" Media Converter
"Side B" Media Converter
"Side B" device
RJ-45 Pins
Relay
Relay
Current
Detector
Current
Detector
earth
earth
JP1
1
3
1
J1
596
29
17
30
26
22
18
14
10
1
J1
596
29
17
30
26
22
18
14
10
JP2
1
3
JP3
1
3
JP1
1
3
JP2
1
3
JP3
1
3
* optional
* optional
(23-24)(23-24)
The figure below illustrates the wiring connections for the “Side A” and “Side B”
devices that have been configured for E&M Signal Type I. The specifics of the wiring
connections are as follows:
• Type I uses two leads for supervisor signaling: E and M.
• During inactivity, E-lead is open and M-lead is connected to ground.
• The PBX circuit (Side A) indicates the off-hook condition by connecting the
M-lead to the battery.
• The CO device (Side B) indicates the off-hook condition by connecting the Elead to ground.
* An optional configuration with a jumper installed on pins 23 and 24 (J1) will
complete the connection labeled “23-24” in the wiring diagram. The specifics of
the wiring diagram are the same whether or not the optional jumper is installed.
JP1
1
3
1
J1
596
29
17
30
26
22
18
14
10
-48V
E (3)
Chassis
SG (6)
M (7)
SB (8)
Chassis
E (3)
SG (6)
M (7)
SB (8)
-48V
RJ-45 Pins
Relay
Relay
Current
Detector
Current
Detector
Jumper settings for: "Side A" Media
Converter
"Side B" Media
Converter
earth
earth
1
J1
596
29
17
30
26
22
18
14
10
JP2
1
3
JP3
1
3
JP1
1
3
JP2
1
3
JP3
1
3
Connection diagrams for: "Side A" device
or: "Side A" Media Converter
"Side B" Media Converter
"Side B" device
7
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E&M Signal Type II
With E&M Signal Type II configuration, two CO device (“Side B”) nodes can be
connected back-to-back. For Type II configuration, set the jumpers on the “Side A”
Device and the “Side B” Device as follows:
The figure below illustrates the wiring connections for the “Side A” and “Side B”
devices that have been configured for E&M Signal Type II. The specifics of the wiring
connections are as follows:
• Type II uses four leads for supervision signaling: E, M, SB, and SG.
• During inactivity, both the E-lead and the M-lead are open.
• The PBX circuit (Side A) indicates the off-hook condition by connecting the
M-lead to the signal battery (SB) lead, which is connected to the battery of
the CO device (Side B).
• The CO device (Side B) indicates the off-hook condition by connecting the Elead to the signal ground (SG) lead, which is connected to the PBX circuit
(Side A) ground.
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