17a02loop

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17a02loop

  1. 1. MX EQUIPMENT: 17A-02-LOOP PUBLICATION: 8 7/07 ISSUE No. & DATE: MX DIGITAL LOOP – LOADING CALCULATION FOR INSTALLATIONS TO BS5839 : PART 1 Note: MKII 801IB Isolator bases are distinguished from 1. INTRODUCTION MKI 801IB Isolator bases by a ‘**’ on the product label. This document specifies the loop loading parameters applicable to each device that can be connected to the MX Digital Loop. It provides a method of assessing that the 3. LOOP LOADING loading of each loop remains within safe operating limits for The maximum number of addressable units that can be specified installation cables. It also provides guidance on the connected to a loop is 250. use of short-circuit line isolators and a method of calculating the number required for a given loop configuration. The permissible loading on a loop is determined by both the DC current drawn from the line and also by the attenuation of Only cables that are in common use in the UK and countries the AC communications signal that each device introduces. working to BS 5839 : Part 1, cables used in shipboard systems and installations using common continental FD In order to simplify the calculations, each device has been cable are covered. For other types of cable, please contact allocated both AC and DC loading values expressed as DC and the Tyco Safety Products Help Desk at Sunbury. AC units respectively. Table 1 gives values for currently available loop devices. Note: Loop loading parameters are subject to change as improvements are made and new devices For each loop the AC loading must not exceed 250 AC units. introduced. Please ensure that the latest issue This has been calculated on the basis of maximum cable length of the document is used when calculating loop of standard fire resistant cable and assumes a line fault has loading. occurred to leave a full-length spur of cable. Refer to Section 4 of this document when using MICC or other high capacitance 2. SHORT-CIRCUIT ISOLATORS cables. The AC loading limit can be increased by 10 AC units for every 100m less than the maximum cable length specified. The 5BI 5” Isolator base, 801IB Isolator base, LI800 Line Isolator Module, LIM800 Line Isolator Module and those The DC loading for systems fitted with FIM/XLMs must not devices that have built-in isolators, provide the means by exceed 1,200 DC units per loop, a maximum of 4,400 DC units which the MX Digital Loop can be protected against per controller or 8,800 units per MX2 controller. accidental short-circuits. It is recommended, that, in line The DC loading for enhanced loop operation fitted with FIM with the requirement of BS5839: Part1, Line Isolators are Mod 7 or later, refer to TIB0438, must not exceed 2,200 DC used to limit the number of devices that can be lost as a result units per loop (including the current consumed by the FIM). of a short-circuit. For each controller, a maximum of 4,400 DC units per There is a maximum limit to the number of devices that can PSB800/PSB820 or 8,800 per PSB821 installed is available. be connected between two Line Isolators. Table 2 gives the The maximum limit per PSB800/PSB820/PSB821 must not be loading value for each loop device in terms of IB units. A exceeded as this would lead to loops shutting down due to maximum of 32 IB units is allowed between two MKI 801IB power supply limitations. Refer to the Alarm Load Calculation Isolator bases. Sheet. However, all other Line Isolators allow 100 IB units to be A second PSB800/PSB820 can be fitted by using the connected between two isolators. This allows at least 32 PSB800K/PSB820K Kit which includes the PSB800 and all devices between isolators unless a large number of RIM800 necessary accessories and leads. or Sounder Base modules are also connected (if in doubt, refer to Table 1). Note: The maximum DC loading calculation allows for 5 loop devices with remote LEDs in alarm and two In establishing the number and location of Line Isolators operated short-circuit isolators. used in a loop, the requirement of BS5839: Part 1 should be first considered. Each isolated section of the loop should then 801IB = 14mA (2 x 7mA) be checked to ensure that the maximum number of IB units 5BI = 20mA (2 x 10mA) has not been exceeded. Where necessary, additional Line LI800 = 5mA (2 x 2.5mA) Isolators should be introduced. LIM800 = 20mA (2 x 10mA) The allowable AC loading limits the maximum number of Loop devices with built-in isolators: Line Isolators that can be used in a loop. Refer to Section 3 (with Isolator indication LED) = 20mA (2 x 10mA) for Loop Loading calculation. (without Isolation indicator LED) = 12mA (2 x 6mA) © 2007 Tyco Safety Products PAGE 1 of 11 Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
  2. 2. MX 17A-02-LOOP 8 7/07 Load Between Line dc Loading ac Loading Device Type Isolators (dc units) (ac units) (IB units) MX Detectors 801PH/813P*** 1 1 1.2 801CH*** 1 1 1 801I*** 1 1 1.4 801H*** 1 1 1 801F*** 1.2 1 7 801PC*** 1.2 2 1 S271f+ 2 2 2 SAM800 1 1 1 SAB800 48 1 2.5 SAB801 15 1 2.5 MX Functional Bases 801IB 0.5 0.1 N/A 5BI 0.3 0.2 N/A 801RB 0.4 0.3 1.6 801SB Full Volume 60 2.4 2.5 801SB Medium Volume 48 2.4 2.5 801SB Low Volume 36 2.4 2.5 802SB Full Volume 27.2 0.5 2.5 802SB Low Volume 4.8 0.5 2.5 812SB No Volume Control 96 0.5 2.5 901SB Full Volume 0** 0.5 2.5 901SB Low Volume 0** 0.5 2.5 912SB No Volume Control 0** 0.5 2.5 Symphoni Sounder Low Volume 13.6 1 N/A (built-in isolator) Symphoni Sounder High Volume 32.4 1 N/A (built-in isolator) Symphoni Sounder Beacon Slow Flash + Low Volume 26 1 N/A (built-in isolator) Symphoni Sounder Beacon Fast Flash + Low Volume 30.4 1 N/A (built-in isolator) Symphoni Sounder Beacon Slow Flash + High Volume 44.4 1 N/A (built-in isolator) Symphoni Sounder Beacon Fast Flash + High Volume 52 1 N/A (built-in isolator) MX Callpoints CP820*** 1.1 1 1.5 CP830*** 1.1 1 1.5 MX Ancillaries LI800 0.6 0.1 N/A LIM800 0.4 0.2 N/A MIM800 1.1 1 1.5 CIM800 1 1 1 DIM800 (Class A) 2.2 1 1 DIM800 (Class B) 1 1 1 RIM800 1.2 1 5 HVR800 0.7 0 N/A SNM800 1.5 1 5 LPS800 * 1.5 1 APM800 2.3 1 1 SIO800 1 1 5 BDM800 140 1 2 VLC800 1.2 2 1 MIO800 1.6 1.2 4 TSM800 1.7 1.2 N/A (built-in isolator) * See Section 3.1. ** Externally powered by 24V dc supply *** And variants unless otherwise listed Table. 1 PAGE 2 of 11
  3. 3. MX EQUIPMENT: PUBLICATION: 17A-02-LOOP ISSUE No. & DATE: 8 7/07 Load Between Line dc Loading ac Loading Device Type Isolators (dc units) (ac units) (IB units) MX Intrinsically Safe Devices EXI800 12 # N/A P&F Isolator 24 # N/A 801PHEx 1 # N/A 801CHEx 1 # N/A 801HEx 1 # N/A 801FEx/811FEx 1.2 # N/A CP840Ex 1 # N/A IF800Ex 1 # N/A S271i+ 3 # N/A # AC loading of Intrinsically Safe devices is measured in IS units, please refer to document 17A-02-ISLOOP MX Intrinsically Safe System - Loading Calculation Table. 1 Max. Total Distance = Max Distance = Max Distance = Max Alarm Loop Cable size distance LPS Cable size distance LPS Cable size distance LPS Current from Panel from Panel from Panel 1.5mm2 2.5mm2 0.8mm2 150mA 2km, 2km, 730m (24 ohm/km) 48 ohms (15 ohm/km) 30 ohms (73 ohm/km) 54 ohms 1.5mm2 2.5mm2 0.8mm2 200mA 1.7km, 2km, 540m (24 ohm/km) 40 ohms (15 ohm/km) 30 ohms (73 ohm/km) 40 ohms 1.5mm2 2.5mm2 0.8mm2 300mA 1.1km, 1.8km, 360m (24 ohm/km) 27 ohms (15 ohm/km) 27 ohms (73 ohm/km) 27 ohms 1.5mm2 2.5mm2 0.8mm2 400mA 0.8km, 1.2km, 270m (24 ohm/km) 20 ohms (15 ohm/km) 20 ohms (73 ohm/km) 20 ohms 1.5mm2 2.5mm2 0.8mm2 500mA 0.7km, 1.1km, 220m (24 ohm/km) 16 ohms (15 ohm/km) 16 ohms (73 ohm/km) 16 ohms Table. 2 Loop Distance Table when using LPS800 3.2 LPS800 LOOP POWERED SOUNDER 3.1 LOOP POWERED SOUNDER MODULE LOOP LOADING MODULES (LPS800) CONSIDERATIONS The LPS800 may drive up to a 75mA output load. The LPS800 takes 4mA plus its output load current, however, If the sounder devices connected to the LPS800 have an for the loop loading calculation the minimum current shall o p e r a t i n g r a n g e d o w n t o 1 2 V, t h e n n o s p e c i a l be 12mA. considerations need to be addressed. If the sounder devices connected to the LPS800 have an operating range down to For example, if the load on the LPS800 is 6mA, the total 18V (such as the 24V LF BANSHEE and 24V Flashni), DC loop current in the active state, from this device is 4mA then special consideration must be taken based on loop + 6mA=10mA. Since this is less than the minimum of current and loop line length. 12mA, 12mA should be used as the dc loading of the device. If the LPS800 load current is 50mA, the dc load For Table 2, Class B Loop wiring, value used should be 54mA. distance = maximum distance an LPS800 can be placed from the panel, other devices can be placed as per MX To calculate the number of DC units of load imposed on the Loop specification. loop by the LPS800 (for use in the Table on page 2), use the DC current calculated above and multiply by 4. For For Class A Loop wiring, distance = maximum distance an example, the LPS800 from above with the 6mA load would LPS800 can be placed from the panel using a worse case calculate to be 48 DC units (12mA x 4) and the LPS800 single break. If an LPS800 is near the panel on the B-side, with the 50mA load would calculate to be 216 DC unit load then a break at the A-side at panel is worst case; in this case on the loop (54 x 4). line length = total loop length. This applies to version 1.3 firmware and greater or for firmware prior to version 1.3 when the digital loops are wired in a spur configuration. © 2007 Tyco Safety Products PAGE 3 of 11 Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
  4. 4. MX 17A-02-LOOP 8 7/07 4. CABLE TYPE AND CABLE Cable Cable type LENGTH length MICC 2L1.5, 2L2.5, 1H1,5, 2H2.5 1.8 km* 4.1 GENERAL Steel Wire Armour (SWA) 1.8 km* Cable requirements for all parts of the system are discussed Fire resistant ‘foil and drain wire’, in Publication 17A-03-I/C, which should be referred to 2 km eg, FP200, Lifeline, Firetuff before installation is carried out. All cables should be installed to meet the requirements of BS5839 Part 1 BS6883 marine cable 2 km Subsection 26 or local equivalent standard. Continental FD cable 0.8mm 2 km For addressable circuit wiring, any type of screened or Table. 3 unscreened cable that would normally be used on fire * Up to 2km of these cables may be used on condition that protection systems may be used in an MX Digital the maximum AC loading is restricted to less than 220 AC Loop. Thus MICC, drain wire type fire resistant and SWA units per loop (refer to Section 3). cables with a minimum 1.5mm 2 and maximum 2.5mm 2 conductor size may all be used. 4.4 CABLE SCREEN For marine applications, 2-core or 4-core ethylene propylene rubber EPR insulation and chloro-sulphanated polyethylene The MX controller uses a floating power supply and (CSP) sheath to BS6883 with a conductor size of 1.5mm2 is provides monitoring for earth leakage faults. It is, therefore, important to ensure that the MX Digital Loop remains to be used. isolated from earth structures. Continental FD cables with a minimum of 0.6mm and a maximum of 0.8mm diameter conductor size may be used. The MX Digital Loop will operate satisfactorily with unscreened cables. However, where cable with a conductive screen or outer metal sheath is used this must not be connected to the MX Digital Loop. Note: It is an IEE Regulation that fire alarm system cables be segregated from (non-fire alarm Where cable with a conductive screen is used, it is system) cables. recommended that the screens from each section of cable be joined within each device to form a continuous cable screen. 4.2 CABLE TYPES 5. VOLTAGE DROP The MX Digital Loop may be wired using MICC, SWA (using a suitable termination gland) or any of the following The MX Digital Loop is designed to operate with a ‘foil and drain wire type’ fire resistant cable (terminated minimum DC voltage of 20V. An even distribution of devices and alarm load along the length of cable will ensure with an SHV or CTX type gland): that the maximum voltage drop remains within acceptable DÄTWYLER: Lifeline limits. DELTA: Firetuff Where a single high alarm load, such as several fully loaded FABRICA CAVICEL: Firecell LPS800 units connected to one point in the loop, is HUBER&SUHNER: Radox FR envisaged, it is important that the maximum volt drop PIRELLI: FP range created by this load is less than 14.4V. DRAKA CALFLEX: Calflam This should be calculated using the highest resistance path to RAYDEX: FG950 the high load, which will be a combination of cable GEC AEI: Firetec resistance and resistance introduced by the Line Isolators. TRATOS CAVI: Firesafe For all calculations on voltage drop due to cabling a spur ALCATEL: Pyrolyon condition should be assumed, ie, the system must operate Continental FD cable 0.6mm: eg, JY(St)Y n x 2 x 0.6 with a single break leaving a maximum cable length. Continental FD cable 0.8mm: eg, JY(St)Y v x 2 x 0.8 The following values should be used: Cable size Resistance 4.3 CABLE LENGTH 1.5mm2 24 ohm/km* 2.5mm2 The maximum length of cable that can be used on an MX 15 ohm/km* Digital Loop depends on the characteristics of the cable such 0.6mm 130 ohm/km* as its parallel capacitance and series resistance. Tests have 0.8mm 73 ohm/km* been conducted to establish the performance of the MX Line Isolators 0.25 ohm/unit Digital Loop with a typical high capacitance and low resistance cable using MICC L1.5 and with a lower * The resistance given is for both conductors. capacitance cable like the Dätwyler Lifeline. Table 3 gives guidelines for these and similar cables: PAGE 4 of 11
  5. 5. MX EQUIPMENT: PUBLICATION: 17A-02-LOOP ISSUE No. & DATE: 8 7/07 8. CALCULATION SHEETS 6. BATTERY CHARGING Pages 6 to 11 contain the AC/DC loading, loading between Line Isolators and Battery and Alarm Load calculation Charging Standby Current Charger Current* sheets which may be photocopied. Capacity Voltage (Amps) (Amps) 2.5 2.0 When calculating the battery Alarm Load for a given 2.0 2.4 system, adequate provision needs to be made for likely 27.4V dc 1.5 2.7 10 - 38Ah @ 20°C 1.0 3.1 system expansion. If in doubt, the figure for the maximum 0.5 3.4 alarm load should be used. 0.0 3.8 Table. 4a PSB800/PSM800/PSB820 JM/an Charging Standby Current Charger Current* Capacity Voltage (Amps) (Amps) 12th July 2007 27.3V dc 65Ah 1.5 3.0 @ 20°C 27.3V dc 10 - 38Ah 2.5 2.0 @ 20°C Table. 4b PSB821 * Average current until battery is restored to 80% capacity. The charging current available from the PSB800/PSB820/ PSB821 is reduced as the standby current increases in accordance with Table 4. 7. BATTERY OUTPUT In the case of mains failure, batteries will provide the outputs shown in Table 5. Battery Standby Time 24 hours 72 hours 38Ah 1400mA + 1Amp 450mA + 1Amp Alarm @30 mins Alarm @30 mins 17Ah 625mA + 1Amp 200mA + 1Amp Alarm @30 mins Alarm @30 mins Table. 5a PSB800/PSM800/PSB820 Battery Standby Time 24 hours 72 hours 65Ah 2350mA + 2 Amps 780mA + 2 Amps Alarm @ 30 mins Alarm @ 30 mins 38Ah 1400mA + 1Amp 450mA + 1Amp Alarm @ 30 mins Alarm @30 mins 17Ah 625mA + 1Amp 200mA + 1Amp Alarm @ 30 mins Alarm @30 mins Table. 5b PSB821 © 2007 Tyco Safety Products PAGE 5 of 11 Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
  6. 6. MX 17A-02-LOOP 8 7/07 LOOP LOADING CALCULATION SHEET PER LOOP dc Loading ac Loading Device Type (dc units) (ac units) dc units Qty Total ac units Qty Total MX Detectors 801PH/813P*** 1 1 801CH*** 1 1 801I*** 1 1 801H*** 1 1 801F*** 1.2 1 801PC*** 1.2 1 S271f+ 2 2 SAM800 1 1 SAB800 48 1 SAB801 15 1 MX Functional Bases 801IB 0.5 0.1 5BI 0.3 0.2 801RB 0.4 0.3 801SB Full Volume 60 2.4 801SB Medium Volume 48 2.4 801SB Low Volume 36 2.4 802SB Full Volume 27.2 0.5 802SB Low Volume 4.8 0.5 812SB No volume Control 96 0.5 901SB Full Volume 0 0.5 901SB Low Volume 0 0.5 912SB No Volume Control 0 0.5 Symphoni Sounder Low Volume 13.6 1 Symphoni Sounder High Volume 32.4 1 MX Intrinsically Safe Devices Symphoni Sounder Beacon Slow Flash + Low Volume 26 1 Device Type dc units ac units Symphoni Sounder Beacon Fast Flash + Low Volume 30.4 1 EXI800 12 # Symphoni Sounder Beacon Slow Flash + High Volume 44.4 1 P&F Isolator 24 # Symphoni Sounder Beacon Fast Flash + High Volume 52 1 801PHEx 1 # MX Callpoints 801CHEx 1 # CP820*** 1.1 1 801HEx 1 # CP830*** 1.1 1 801FEx/811FEx 1.2 # MX Ancillaries CP840Ex 1 # LI800 0.6 0.1 IF800Ex 1 # LIM800 0.4 0.2 S271i+ 3 # MIM800 1.1 1 CIM800 1 1 DIM800 (Class A) 2.2 1 DIM800 (Class B) 1 1 RIM800 1.2 1 HVR800 0.7 0 * See Section 3.1 SNM800 1.5 1 ** Must not exceed 4400 DC units per LPS800 * 1.5 PSB800/PSB820 or 8,800 DC units per APM800 2.3 1 PSB821 SIO800 1 1 *** And variants unless otherwise BDM800 140 1 stated VLC800 1.2 2 # For systems with both hazardous and MIO800 1.6 1.2 non-hazardous areas, the AC (IS) units TSM800 1.7 1.2 must be calculated first. A conversion Standing DC Loading 220 factor can then be used to determine the number of spare AC units available for Total AC (IS#) Units the non-hazardous area of the MX loop. Refer to Publication 17A-02-ISLOOP. Existing loop operation Total DC units Total AC units (1 x PSB) (1,200 max) (250 max) Enhanced loop operation Total DC units Total AC units (2 x PSB) (2,200 max)** (250 max) PAGE 6 of 11
  7. 7. LOADING BETWEEN LINE ISOLATORS Device IB Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Type Units Qty Total Qty Total Qty Total Qty Total Qty Total Qty Total Qty Total Qty Total Qty Total Qty Total MX Detectors 801PH/813P* 1.2 801CH* 1 801I* 1.4 801H* 1 801F* 7 801PC* 1 SAM800 1 SAB800 2.5 © 2007 Tyco Safety Products SAB801 2.5 S271f+ 2 MX Functional Bases 801RB 1.6 801SB Full Volume 2.5 801SB Medium Volume 2.5 801SB Low Volume 2.5 802SB Full Volume 2.5 802SB Low Volume 2.5 812SB 2.5 901SB Full Volume 2.5 901SB Low Volume 2.5 912SB 2.5 MX Callpoints CP820* 1.5 CP830* 1.5 MX Ancillaries MIM800 1.5 CIM800 1 DIM800 1 RIM800 5 HVR800 N/A SNM800 5 LPS800 1 APM800 1 SIO800 5 BDM800 2 VLC800 1 MIO800 4 Total IB Units per section (100 max): * And variants unless otherwise stated PAGE 7 of 11
  8. 8. BATTERY CALCULATION SHEET Normal Loads Alarm Loads Notes/Rating mA Qty Total mA Qty No. Loops Total CONTROL EQUIPMENT FIM801 + CPU Loop loading included 123 172 195 244 FIM802 + CPU Loop loading included 172 244 XLM800 104 105 PSB800 90 90 PSM800 65 65 PSM820/PSB820 90 90 PSB821 90 105 AC Repeater (OCM + ODM + PSM) 91 316 OCM800 (5V dc power) 11 22 ODM800 (Driven from OCM800) AC fault Backlight off 14 14 DCM800 (5V dc power) used on MX2 23 252 MPM800 (5V dc power) 10 19 MPM800 (5V dc power) with isolated RS485 22 30 ANN840 (5V dc), may require MPM 800 20 LEDs on 1 23 ANN880 (5V dc), may require MPM 800 20 LEDs on 1 23 ANN881 (5V dc power) used on MX2 1 23 COM820 (5V dc), may require MPM 800 5 LEDs 1 6 IOB800 29 208‡ XIOM16 LEDs, MPM800 (5Vdc) per 5 units 16 LEDs on 47 47 XIOM 16 inputs, MPM800 (5Vdc) per 5 units 16 inputs active 24 24 XIOM 16 relay, MPM800 (5Vdc) per units 16 relays on 1603 1603 MIMIC 80 add MPM800 (5Vdc) per unit 20 LEDs on 37 37 PRN800 52 52 TLI800 127 127 SIM800 2 2 LOOP DEVICES 800 detectors and ancillaries Alarm Indicator Load: 55mA x No. of Loops* 55 801IB alarm load is tripped 0.03 0.03 5BI 0.15 0.15 LI800 0.03 0.03 LIM800 0.15 0.15 801CH# 0.41 0.41 801CHEx 0.55 0.55 801F# 0.546 0.546 801FEx# 0.546 0.546 801H# 0.33 0.33 801HEx 0.52 0.52 801I# 0.49 0.49 801PH/813P# 0.41 0.41 801PHEx 0.63 0.63 801PC# 0.64 0.64 S271f+ 0.91 0.91 S271i+ 1.365 1.365 801RIL 0 8.23 801HL 0.0 9.1 CIM800 0.46 0.46 MIM800 w/o remote LED 0.5 0.5 MIM800 w/remote LED 0.5 0.5 RIM800 0.53 0.53 SAB800 0.33 21.84 SAB801 0.33 6.83 SAM800 0.33 0.33 SNM800 0.69 0.69 DIM800 (Class A) 0.98 0.98 DIM800 (Class B) 0.46 0.46 APM800 5A @ 24V dc 0.51 1.06 Callpoint 0.46 0.46 BDM800 with Fireray 2000 28 42 BDM800 with Fireray 50R/100R 9.5 29.5 SIO800 0.46 0.46 CP840Ex 0.55 0.55 IF800Ex 0.6 0.6 801RB 0.2 0.3 801SB Full volume 0.08 25 802SB Full volume 0.465 12.38 812SB Only one volume setting 0.465 38.22 Symphoni Sounder Full Volume 0.82 14.75 Symphoni Sounder Beacon Fast Flash, Full Volume 0.82 23.66 EXI800 5.5 5.5 P&F Isolator 11.0 11.0 LPS800 ** 1.24 *** VLC800 0.546 0.546 MIO800 0.71 0.71 HVR800 (when using control input) 0 0.33 TSM800 0.77 0.77 Total Total Continued overleaf PAGE 8 of 11
  9. 9. MX EQUIPMENT: PUBLICATION: 17A-02-LOOP ISSUE No. & DATE: 8 7/07 Total from previous page 24V LOADS PSM800 AC supply off 65 65 PSB800 AC supply off 90 90 PSM820/PSB820 AC supply off 90 90 PSB821 AC supply off 90 105 RSM800 6 MPM800 (24V dc power), 1 per 80 points 15 28 MPM800 (24V dc power), 1 per 80 points, with 34 47 isolated RS485 OCM800 (24V dc power) 35 81 ODM800 (24V dc power) may require MPM800 Backlight on 14 230 ANN840 (24V dc power) may require MPM800 20 LEDs on 0.8 35 ANN880 (24V dc power) may require MPM800 20LEDs on 0.8 35 COM820 (24V dc power) may require MPM800 5 LEDs on 0.8 9 XIOM 16 inputs, MPM800 (24Vdc) per 5 units 16 inputs active 25 25 XIOM 16 LEDs, MPM800 (24Vdc) per 5 units 16 LEDs on 49 49 XIOM 16 relay, MPM800 (24Vdc) per 5 units 16 relays on 1605 1605 MIMIC 80, MPM800 (24Vdc) per unit 20 LEDs 39 39 PRN800 52 52 DIM800 (current per Class A spur) Not including detector load 8.25 50 DIM800 (current per Class B Spur) Not including detector load 14 50 DC Repeater (ODM800 + OCM800 + RSM800) 46 279 IOB800 29 208‡ 200mA @ 24V dc LCD Repeater (with RS232-RS422 Converter) Remotely powered 901SB 0.46 6.8 912SB 0.46 24 601SB 0.46 6.8 SB520 15A @ 24V dc 85 HVR800 (used with RIM800 or MIO800) 10A @ 250V ac 16 APM800 5A @ 24V dc 5.4 7 SNM800 2A @ 24V dc 1.4 1.4† BELL 0 55 BANSHEE 0 17 BEDLAM 0 30 WESTERMO Modem 72 72 OTHER LOADS Total (2.5A max)= Total (5A max)= x x Alarm Hours Standby Hours Standby Capacity = Alarm Capacity x 1.2 = Total Capacity = Standby + The Maximum charger load is either Alarm = maximum Normal or Alarm which ever is the greatest Divide by 1000 = Multiply by battery factor (1.25)= Ah (*/**/***/†/‡/#) See Notes * The maximum number of detectors and /or ancillaries that can indicate an alarm and /or operated state at any one time is 5 per loop. This assumes the worst case of 5 detectors plus RILs. ** See Section 3.1. *** The alarm load can be calculated by the following expression: Alarm load (mA) = (4 + LPS800 output load current x 1.82). † Sounder load to be added. ‡ All relays operated. # And variants unless otherwise listed © 2007 Tyco Safety Products PAGE 9 of 11 Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
  10. 10. MX 17A-02-LOOP 8 7/07 ALARM POWER SUPPLY CALCULATION SHEET 40V Load 24V Load 5V Load Notes/Rating mA Qty Total mA Qty Total mA Qty Total CONTROL EQUIPMENT FIM801 + CPU 25 1 25 100 1 100 184 1 184 FIM802 + CPU 50 100 194 XLM800 50 2 40 PSB800 90 PSM800 65 PSM820/PSB820 90 PSB821 105 AC Repeater (ODM800 + OCM800 + PSM800) Backlight on 65 941 OCM800 (5V dc power) - - 81 ODM800 (Driven from OCM800) - - 860 DCM800 (5V dc power) used on MX2 942 MPM800 (5V dc power) - - 73 ANN840 (5V dc power) may require MPM800 - - 85 ANN880 (5V dc power) may require MPM800 - - 85 ANN881 (5V dc power) used on MX2 85 COM820 (5V dc power) may require MPM800 - - 21 IOB800 (5V dc power w/MPM800) - - 35 XIOM (5V dc) 16 LEDs O/Ps configured 177** XIOM (5V dc) 16 inputs active 91** XIOM (5V dc) 16 relays active 11** 80-Way Mimic (25% LEDs) 140 TLI800 120 25 PRN800 52 SIM800 8 LOOP DEVICES Loop #1 unit load 0.25 # Loop #2 unit load 0.25 # Loop #3 unit load 0.25 # Loop #4 unit load 0.25 # 24V LOADS PSM800 AC supply off - 65 - PSB800 AC supply off 90 PSM820/PSB820 AC supply off 90 PSB821 AC supply off 105 DC Repeater c/o OCM, ODM, RSM800 Backlight on 279 RSM800 6 MPM800 (24V dc power) - 30 - OCM800 (24V dc power) - 81 - ODM800 (24V dc power) may require MPM800 Backlight on - 239 ANN840 (24V dc power) may require MPM800 25% of LEDs in alarm - 35 - ANN880 (24V dc power) may require MPM800 25% of LEDs in alarm - 35 - COM820 (24V dc power) may require MPM800 25% of LEDs in alarm - 9 - DIM800 (Class A) Not including detector load - 50 - DIM800 (Class B) Not including detector load 100 HVR800 10A @ 250V ac - - APM800 5A @ 24V dc - 7 - IOB800 (24V dc power with MPM800) - 200 XIOM 16 LEDs O/Ps configured 49** XIOM (24V dc) 16 inputs active 25** XIOM (24V dc) 16 relays active 1605** 80-Way Mimic (25% LEDs) 39 SB520 15A @ 24V dc - - SNM800 2A @ 24V dc - 1.4‡ - RIM800 2A @ 24V dc - 901SB 6.8 912SB 24 601SB 6.8 BELL - 55 - BANSHEE - 17 - BEDLAM - 30 - WESTERMO Modem 72 OTHER LOADS Note: Total (†)= Total (5.0A max)= Total (2.2A max)= x x x x 1) The maximum 40V load for a 4-loop MX controller is 4400 DC 1.85x 0.267 1 units or 1.1A. 2) The maximum 40V load for a 8-loop MX2 controller is 8800 40V load = 24V load = 5V load = DC units or 2.2A PAGE 10 of 11
  11. 11. MX EQUIPMENT: PUBLICATION: 17A-02-LOOP ISSUE No. & DATE: 8 7/07 # = Total DC units from Loop Loading Calculation Sheet. 40V load = † The total 40V load allowed is 1.2A per PSB800/PSB820 fitted or 2.4A per PSB821 fitted. +24V load = ‡ Sounder load to be added. +5V load = ** Requires MPM800 to drive this device. Divide by 1000 = Total 24V dc load = Not to exceed 5.0 Amps total © 2007 Tyco Safety Products PAGE 11 of 11 Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE

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