Keymile SUPM1 User manual

User Manual
SUPM1
supm1_r2b
POTS, TDM services
XMC20

XMC20
SUPM1 User Manual
Copyright and Confidentiality Copyright in this document vests in KEYMILE. This document contains confi-
dential information which is the property of KEYMILE. It must be held in con-
fidence by the recipient and may not be used for any purposes except those
specifically authorised by contract or otherwise in writing by KEYMILE. This
document may not be copied in whole or in part, or any of its contents dis-
closed by the recipient to any third party, without the prior written agreement
of KEYMILE.
Disclaimer KEYMILE has taken reasonable care in compiling this document, however
KEYMILE accepts no liability whatsoever for any error or omission in the
information contained herein and gives no other warranty or undertaking as
to its accuracy.
KEYMILE reserves the right to amend this document at any time without
prior notice.
Document PEC EN/LZTBU 372 129/1 RC
Document release XMC20 R4C/R6B | 9 December 2015
Published by KEYMILE
http://www.keymile.com

User Manual
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Content
1 Preface 6
1.1 Precautions and Safety 6
1.2 Symbols and Notations 6
1.3 Interfaces and Circuit Categories 7
1.4 Document History 7
2Introduction 8
2.1 General 8
2.2 Unit View 9
3 Functions and Specifications 10
3.1 Feature Licences 10
3.2 Main Functions and Specifications 10
3.3 User Ports 13
3.4 Voice Transmission Specification 14
3.5 Signalling Specification 16
3.6 Thermal Management 21
3.7 Line Test 22
3.8 Length of Subscriber Lines 24
3.9 Power Consumption 25
4 Installation 27
4.1 Prerequisites 27
4.2 Slots and Deployment Scenarios for the SUPM1 Unit 28
4.3 Splitters 30
4.4 Jumpers 30
4.5 Protection 30
4.6 Compatibility 31
4.7 Connections and Cables 32

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5 Functional Description 35
5.1 V5CAS Mode of Operation 35
5.2 Mercury CAS Modes of Operation 36
5.3 Phone-Exchange Mode of Operation 39
5.4 Phone-Phone Mode of Operation 41
5.5 Port States 43
5.6 PSTN Maintenance 45
5.7 Line Impedance Selection 47
5.8 Input and Output Level 48
5.9 Line Feeding 49
5.10 Signalling 50
5.11 Line Test 52
5.12 Thermal Management 58
5.13 Power Management 59
5.14 Special Features 60
6 Commissioning 61
6.1 Commissioning of a PSTN Port 61
7 Operation 66
7.1 Unit Optical Indicators 66
7.2 Maintenance 67
8 User Interface Reference 68
8.1 Introduction 68
8.2 AP: / unit-x: SUPM1 70
8.3 AP: / unit-x / port-y 82
9Annex 93
9.1 Associated XMC20 Documents 93
9.2 Technical Support 94
9.3 Product Training 94

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Figures
Figure 1: SUPM1 applications with and without local exchange 8
Figure 2: SUPM1 unit view 9
Figure 3: XMC25subrack with 19 SUPM1 units and 1 STM14 unit 28
Figure 4: XMC23 subrack with 6 SUPM1 units and 1 SELI8 unit 28
Figure 5: XMC25 subrack with 19 SUPM1 units and 1 VOIP1 unit 29
Figure 6: Pin-out of the SUPM1 front connectors, front view 32
Figure 7: Side view of the cable tray and the cable in XMC25 33
Figure 8: V5CAS routing in XMC20 35
Figure 9: MCAS routing in XMC20 36
Figure 10: Phone-Exchange mode 39
Figure 11: Phone-Phone mode 41
Figure 12: Digital test loop for voice signals 46
Figure 13: a/b impedance 47
Figure 14: Level configuration on input and output directions 48
Figure 15: Test adapter 54
Figure 16: Finite state machine for the line-test procedure 56
Figure 17: Thermal management thresholds 58
Figure 18: Power management for normal priority subscribers 59
Figure 19: Fault indication LEDs on the SUPM1 unit 66
Figure 20: MOM (managed object model) of the SUPM1 unit 68

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Preface
1Preface
1.1 Precautions and Safety
Before you handle any equipment you must comply with the safety advices.
Adherence to the safety instructions ensures compliance with the safety
requirements as defined in EN 60950 (Safety of Information Technology
Equipment).
Please refer to the following document:
[202] Safety Instructions “Precautions and safety”.
1.2 Symbols and Notations
This User Manual uses the following symbols:
WARNING
Non-observance can lead to death or injury. Non-observance could result in death or serious injury.
Indicates a hazard with a medium level of risk which, if not avoided, could
result in death or injury to the user.
→ Possible actions are given.
NOTICE
Non-observance could result in equipment damage.
Failing to comply with this may result in physical damage.
→ Possible actions are given.
Risk of operating trouble!
Indicates that an action may lead to operating trouble or loss of data.
→ Possible actions are given.
Please note:
Shows significant information.
→ Possible actions are given.

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Preface
1.3 Interfaces and Circuit Categories
1.4 Document History
Table 1: Electrical interfaces and circuit categories
SUPM1 interface Circuit category according to
EN 60950-1
Max. rating
Voltage Current
Local power supply TNV2 < 72 VDC < 2.5 A
PSTN a/b interface TNV3 < 53 VDC < 45 mA
< 75 VRMS < 120 mA
Table 2: Document history
KEYMILE PEC Date XMC20
release
Changes since previous version
EN/LZTBU 372 129/1 RC November 2015 R6B Revision for the XMC20 system releases R4C and R6B
EN/LZTBU 372 129/1 RB July 2015 R6A HW name for VOIP1 corrected
EN/LZTBU 372 129/1 RA March 2015 R6A Revision for the XMC20 system release R6A
EN/LZTBU 372 129 RC February 2015 R4C First revision for the XMC20 system release R4C

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Introduction
2Introduction
2.1 General
This document describes the architecture and functions of the SUPM1 unit
and shows, how this unit is commissioned and operated as part of the
XMC20.
The SUPM1 unit is a 1-slot wide service unit of XMC20. It has 16 PSTN user
ports with a telephony bandwidth of 300 Hz to 3.4 kHz. The SUPM1 unit con-
verts the analogue voice signal to a 64 kbit/s digital signal (and vice versa).
This type of user ports is also called FXS interface, 2-wire analogue interface
or a/b-interface.
The SUPM1 unit allows the connection of an analogue telephone set to a
local exchange via a TDM network.
Another application is in a private network where two telephone sets are
directly interconnected without a local exchange.
Figure 1: SUPM1 applications with and without local exchange
The SUPM1 unit is connected to a P12 transport unit, e.g. SELI8, via the
PBUS in the backplane of XMC20.
The SUPM1 unit can also be connected to the Voice over IP (VoIP) media
gateway VOIP1 via the PBUS in the backplane of XMC20.
Where the voice circuits are running in environments with high electrical
interference, e.g. near the rail infrastructure, the high voltage common mode
filter box FIL16 can be deployed between the SUPM1 front ports and the
line. For more information please refer to [458] User Manual “FIL16”.
FXO
P12 transport unit
FXS
TDM
Network
FXO FXS
Analogue
exchange
FXO FXS
TDM
Network
FXO FXS
XMC20 XMC20
SUPM1
TUXA1
SUPM1
SUPM1
XMC20 XMC20

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Introduction
2.2 Unit View
Figure 2: SUPM1 unit view
Figure 2 "SUPM1 unit view" shows the SUPM1 unit hardware. On the front
plate are two LEDs for the unit- and traffic failure indication and one standard
DIN 41 612 based connector for 16 PSTN signals.

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Functions and Specifications
3Functions and Specifications
The SUPM1 unit provides the following functions and conforms to the corre-
sponding standards and recommendations (conformance to applicable parts
of the standards).
3.1 Feature Licences
Part of the XMC20 functionality is subject to feature licences. For more infor-
mation on feature licences please refer to [012] Release Note “XMC20” and
to [915] Technical Bulletin “Feature Licences for XMC20”.
3.2 Main Functions and Specifications
NOTICE
Overvoltage. Risk of equipment damage!
Onboard overvoltage protection is only adequate for inhouse connections.
→ For connections leaving the building external primary protection with
gas discharge tubes is mandatory.

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Functions and Specifications
Table 3: Main functions and specifications
Feature Rating or standard Release
16 PSTN user ports according to ITU-T Q.552 ITU-T Q.552 (11/2001)
Transmission characteristics at 2-wire analogue
interfaces of digital exchanges
ITU-T G.711 (1988)
r1a
Pulse Code Modulation (PCM) of voice frequencies r1a
BORSCHT functionality: Battery feed
Overvoltage protection
Ringing injection
Supervision
Codec
Hybrid
Testing
r1a
Voice impedances configurable for different countries
and applications
ITU-T Q.552 (11/2001)
Transmission characteristics at 2-wire analogue
interfaces of digital exchanges
r1a
Input and output level configuration ITU-T G.712 (11/2001)
Transmission performance characteristics of pulse
code modulation channels
r1a
Input and output overvoltage protection
According to ITU-T K.20, enhanced test level with
acceptance criteria A.
Note:
External primary protection (230V Gas Discharge
Tubes) is mandatory
ITU-T K.20 (07/2003)
Resistibility of telecommunication equipment
installed in a telecommunications centre to overvolt-
ages and overcurrents
r1a
Connector DIN 41612 r1a
V5CAS mode of operation (internal communication) r1a
MCAS modes of operation Technical specification for customer signalling in
public networks:
T 0197, Mercury Communications Ltd., 1990
Analogue 2-wire signalling state diagrams:
C6 0193 Issue 2, Mercury Communications Ltd,
1996
r1a
Phone-Exchange mode of operation r1a
Phone-Phone mode of operation r1a
Pulsed no battery type “a-wire disconnected”
Pulsed no battery type “a-b-wire disconnected”
NZ PTC 107, 6.5 r1a
Wetting current BT, SIN 242 Issue 2.2, November 2002
“Calling Line Identification Service”
r1a
Onboard ringing generator r1a
Onboard line-test function r1a
Thermal management r1a
Protection against equipment damage caused by faulty
installation of cables
r1a
Front panel access. One shielded cable is connected to
the front panel. It carries all 16 subscriber lines
r1a
No hardware settable options on the unit. All unit
parameters are software settable with the Element Man-
ager
r1a

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Functions and Specifications
Hot swapping: You can replace a SUPM1 unit without
interfering with any other units. No actions on powering,
configuration or commissioning need to be taken if you
remove/replace a SUPM1 unit
r1a
Alarm reporting ITU-T X.733 (1992)
Information technology – open systems intercon-
nection – systems management: Alarm reporting
function
r1a
Power supply r1a
- Power supply range VBAT refer to [201] System Description “XMC20”
- Maximum current consumption, IVBAT
VBAT = -48 V
1.5 A
- Maximum total power requirement from battery, PTOT
VBAT = nominal voltage
60 W
- Maximum basic power consumption from battery
(all ports disabled),
VBAT = nominal voltage
5.5 W
Mechanical parameters r1a
- Construction practice 19 inch
- Height of unit (1 HU = 44.45 mm) 6 HU
- Width of unit (1 TE = 5.08 mm) 4 TE (1 slot)
- Size of the PCB (H x D) 233 mm x 220 mm
- Weight 430 g
- RoHS Directive 2002/95/EC of the European Parliament
and of the Council of 27.1.2003 on the Restriction
of the use of certain hazardous substances in elec-
trical and electronic equipment
- WEEE Directive 2002/96/EC of the European Parliament
and of the Council of 27.1.2003 on waste electrical
and electronic equipment
Reliability r1a
- Calculated MTTF at 35 °C (MIL-HDBK-217F) 88 years
Emission refer to [201] System Description “XMC20” r1a
Immunity refer to [201] System Description “XMC20” r1a
Safety refer to [201] System Description “XMC20” r1a
Ambient conditions refer to [201] System Description “XMC20” r1a
Table 3: Main functions and specifications (continued)
Feature Rating or standard Release

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Functions and Specifications
3.3 User Ports
Table 4: User ports
Feature Rating or standard
Number of user ports per SUPM1 unit 16
Maximum number of subscribers in off-hook per
SUPM1 unit, duration infinite
16

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Functions and Specifications
3.4 Voice Transmission Specification
Table 5: Voice transmission specification
Feature Rating or standard
Voice impedance The following voice impedances are supported.
Refer to Q.552; 2.2.1.1; Table 1:
All impedances are configurable in the element manager.
Return loss Q.552; 2.2.1.2; Fig. 1
Impedance unbalance about earth Q.552; 2.2.2; Fig. 2
Relative voice levels
- Input (Subscriber → SUPM1):
- Output (SUPM1 →Subscriber):
- Selectable in steps of 0.5 dB
Q.552; 2.2.3.1
-4 … +4 dBr
-10 … 0 dBr
Tolerances of relative levels Q.552; 2.2.3.2
Variation of gain with input level Q.552; 3.1.1.4; Fig. 4
Loss distortion with frequency Q.552; 3.1.1.5; Fig. 5a, b
Absolute group delay Q.552; 3.1.2.1
Group delay distortion with frequency Q.552; 3.1.2.2
Crosstalk Q.552; 3.1.4
Input signals above 4.6 kHz Q.552; 3.1.6.1
Level of individual components Q.552; 3.1.7.1
R
S
R
P
C
P
ID RS [Ω] RP [Ω] CP [nF] Codec
a900 00A-law
b600 00A-law
c600 00u-law
d200 680 100 A-law
e370 620 310 A-law
f220 820 115 A-law
g300 1000 220 A-law
h270 750 150 A-law

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Functions and Specifications
Terminal Balance Return Loss The following test networks are supported. The test network ID
must correspond to the voice impedance ID.
Refer to Q.552; 3.1.8.1; Fig. 10:
Weighted noise Q.552; 3.3.2.1
Total distortion Q.552; 3.3.3; Fig. 14 a, b
Table 5: Voice transmission specification (continued)
Feature Rating or standard
R
S
R
P
C
P
ID RS [Ω] RP [Ω] CP [nF]
a900 0 -
b600 0 -
c600 0 -
d200 680 100
e370 620 310
f220 820 115
g370 620 310
h270 750 150

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Functions and Specifications
3.5 Signalling Specification
Table 6: Signalling specification - DC loop feeding
Feature Rating or standard
On-hook voltage unloaded
@ VBAT = -39.5 … -60.0 VDC UONHOOK = -53 … -59 V
@ VBAT = -60.0 … -72 VDC | UONHOOK | =
| VBAT – 2 V | ± 3 V
On-hook voltage
@ ILOOP = 2.0 mA | UONHOOK | ≥ 44 V
On-hook voltage
@ ILOOP = 5.0 mA | UONHOOK | ≥ 44 V
Maximum on-hook loop current ILOOP ≤ 5 mA
Loop current Constant current feeding
Selectable loop currents a15.0 mA, ± 10%
19.5 mA, ± 10%
23.5 mA, ± 10%
30.0 mA, ± 10%
39.0 mA, ± 10%
45.0 mA, ± 10%
Normal polarity a-wire is more positive than b-wire.
a-wire is close to GND but still negative.
Maximum loop resistance 2 kΩ including the terminal.
This fulfils the requirements of a long haul interface.
Off-hook detection @ default loop current (23.5 mA) ILOOP ≥ 15 mA
On-hook detection ILOOP ≤ 7 mA
a. When operating the SUPM1 unit in a passively cooled subrack the loop current is limited to 23.5 mA.
Table 7: Signalling specification - off-hook detection timing
Feature Rating or standard
Safe detection
No detection
tline ≥ 20 ms
tline < 15 ms
If a wake up signal, e.g. a polarity reversal, is sent out to initiate CLIP, the terminal will draw a short current pulse which
can be interpreted by the SUPM1 as an off-hook event. So the detection time for off-hook has to be increased to prevent
this false off-hook detection to ≥ 200 ms.
In the V5CAS mode of operation, the off-hook timing parameter is configured in the CPS of the VOIP1 unit as the Con-
nect Timeout parameter (HS1.3).
In the MCAS mode of operation the off-hook detection time is predefined to 200 ms in the SUPM1.
Table 8: Signalling specification - reduced battery
Feature Rating or standard
During the “reduced battery” state, the loop current is reduced to a predefined level. This level is set to a value that still
ensures a correct on-hook/off-hook detection.
Minimum loop current 15 mA

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Functions and Specifications
Table 9: Signalling specification - pulse dialling
Feature Rating or standard
In the V5CAS mode of operation, the pulse dialling as well as the on-hook/off-hook times are defined by the custom
parameter set (CPS) of the signalling interworking unit (VOIP1 unit).
In the MCAS mode of operation, the following predefined values are used:
Pulse cadence 9 pps … 12 pps
Pulse - pause ratio (tbreak/(tbreak + tmake)) 0.53 … 0.72
Pulse length + pause length 90 ms … 110 ms
Pulse length (tbreak)52 ms … 72 ms
Pause length (tmake)28 ms … 46 ms
Interdigit time ≥ 140 ms
Distortion (line-CAS): ≤ 10 ms
Table 10: Signalling specification - flash impulse
Feature
A flash impulse is transferred as an on-hook/off-hook signal.
In the V5CAS mode of operation, the flash detection times are defined by the custom parameter set (CPS) of the signal-
ling interworking unit (VOIP1 unit).
In the MCAS mode of operation, the flash detection times are defined by the CAS.
Note: If SUPM1 is in thermal overheat state 1 and a flash impulse is > 200 ms, then this flash impulse will interrupt the
call since it is detected as a short but valid on-hook state.
Table 11: Signalling specification - ground key
Feature Rating or standard
Detection during on-hook on the negative wire
(with normal polarity: b-wire)
Detection during off-hook on the a-wire or b-wire
Detection time ≥ 6 ms
No detection time < 6 ms
Delay (line-CAS): ≤ 100 ms
Table 12: Signalling specification - DTMF dialling
Feature
DTMF signals are transmitted transparently in the voice band. The SUPM1 does not influence the DTMF signalling.
Table 13: Signalling specification - CLIP (Calling Line Identification Presentation)
Feature
CLIP is supported. This means that on-hook VF-transmission is possible during ringing pauses, after an initial ring or
after an (initial) polarity reversal.
Table 14: Signalling specification - ringing voltage (part 1)
Feature
Each SUPM1 subscriber port has its own ringing signal source. The ringing signal is balanced, also called symmetrical.
Note: The ringing signal characteristics “ring over b-wire”, “ring over a-wire” and “ring over b-wire ringing earth-backed”
are not applicable.

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Functions and Specifications
Please note:
With the MCAS earth calling mode the ringing voltage is 40 VAC unbalanced,
applied to the b-wire only.
The ringing voltage is superimposed on both, the a-wire and the b-wire. It is a contra directional voltage. The difference
of these two voltages gives the ringing voltage.
The ringing signal has a DC offset of about 20 VDC.
During ringing pause the normal on-hook voltage is applied to the line.
Table 14: Signalling specification - ringing voltage (part 1) (continued)
Feature
Ringing Voltage
[V]
Time
+U
R
/2 + 10 V
Ringing
+10
0
-10
Ringing
Voltage
U
R
+ 20 V
Ringing Pause
-U
R
/2 - 10 V
b-wire
a-wire
Ri ngi ng
Voltage
U
R
– 20 V
Ringing
Ringing
Voltage
U
R
Table 15: Signalling specification - ringing voltage (part 2)
Feature Rating or standard
Ring signal form sinusoidal
Ring frequencies fRING 16 2/3, 20; 25; 50 Hz ± 3 Hz
Maximum ring signal voltage ≤ 75 VRMS, unloaded
Minimum ring signal voltage ≥ 65 VRMS, maximum load
Maximum load per subscriber
@ fRING ≤ 25Hz
or @ fRING = 50 Hz
or
3 REN
1.6 REN
2.5 kΩ
Definition of 1 REN: 1.8 kΩ + 850 nF
= 7.7 kΩ -76.5° @ 25Hz
Maximum load per SUPM1 unit for simultaneous ringing 24 REN
Maximum ringing current (short circuit): ≤ 120 mA
Ringing signal crest factor ≥ 1.2
Ringing delay CAS → a/b-wire ≤ 40 ms
Ringing distortion CAS → a/b-wire ≤ 40 ms
Ringing cadence according to CAS
Table 16: Signalling specification - metering
Feature Rating or standard
Each subscriber circuit on the SUPM1 unit has its own metering generator. Metering pulses can be sent to the line dur-
ing off-hook and up to 25.5 seconds after going on-hook.

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Functions and Specifications
Metering frequencies 12 kHz ± 30 Hz
16 kHz ± 40 Hz
Metering level at 200 Ω load 0.5 ± 0.1 VRMS
0.9 ± 0.2 VRMS
1.8 ± 0.2 VRMS
2.4 ± 0.3 VRMS
3.0 ± 0.3 VRMS
Metering level unloaded
@ 0.5 V setting
@ 0.9 V setting
@ 1.8 V setting
@ 2.4 V setting
@ 3.0 V setting
≤ 0.9 VRMS
≤ 1.7 VRMS
≤ 3.0 VRMS
≤ 4.0 VRMS
≤ 5.0 VRMS
Pulse and pause length V5CAS: According to the custom parameter set (CPS) of the
signalling interworking unit (VOIP1 unit).
MCAS: According to the CAS
Shaping smooth ramping avoids any noise
Table 16: Signalling specification - metering (continued)
Feature Rating or standard
Table 17: Signalling specification - polarity reversal
Feature Rating or standard
Polarity reversal with normal polarity (a-wire more posi-
tive than b-wire), off-hook
supported
Polarity reversal with reversed polarity (b-wire more
positive than a-wire), off-hook
supported
Polarity reversal with normal polarity (a-wire more posi-
tive than b-wire), on-hook
supported if ILOOP ≥ 1 mA
Polarity reversal with reversed polarity (b-wire more
positive than a-wire), on-hook
supported if ILOOP ≥ 1 mA
Delay CAS → a/b-wire ≤ 100 ms
Smooth polarity reversal supported
Table 18: Signalling specification - pulsed no battery
Feature Rating or standard
Pulsed no battery is supported in the V5CAS mode of opera-
tion only.
The SUPM1 unit supports two types of pulsed no battery:
a-wire and b-wire disconnected (default):
An information element (IE) “pulsed no battery” causes a dis-
connect of both wires.
a-wire
b-wire
SUPM1

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Functions and Specifications
a-wire disconnected:
An information element (IE) “pulsed no battery” disconnects the
a-wire only. The b-wire remains on the –VBAT.
Delay CAS → a/b-wire ≤ 100 ms
Table 18: Signalling specification - pulsed no battery (continued)
Feature Rating or standard
a-wire
b-wire
SUPM1