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August 31, 2026 11 min read
Complete instructions and specifications for the ELK-C1M1 LTEV ElkCommBd Communicator — a dual-path (Cellular + IP) alarm communications device for the ELK-M1G Control family.
Instructions and specifications for the ELK-C1M1 LTEV ElkCommBd Communicator — a dual-path (Cellular + IP) alarm communications device for the ELK-M1G Control family, covering setup, wiring, registration, and M1 programming.
The C1M1 LTEV ElkCommBd is a dual-path alarm communications device for use with the ELK-M1G Control family. It backs up or replaces old-fashioned phone-line communications, sending full data messages over Internet (IP) as the primary pathway and Cellular as backup. It can also be configured for single-path operation if one pathway is unavailable. In dual-path mode it can optionally detect a temporary outage of either pathway after a selectable delay and report that outage over the remaining pathway. Periodic automatic test reports configured in the M1 are sent over both pathways for reliability. All communications between the C1M1 and the Central Monitoring Station are encrypted and secure.
Cellular service is handled via a partnership between Elk and Telguard Online (a division of Telular Corporation). Activation and setup are handled through the Telguard Online website. Once a unit is activated, Central Station reporting parameters and paths are managed through the ElkLink website. Installing dealers need online accounts for both websites; existing Telguard dealers can reuse existing credentials.
| Spec | Value |
|---|---|
| Operating Voltage | 12VDC |
| Standby Current | 85 mA |
| Max. Operating Current | 230 mA |
| Frequencies Supported | 800/1900 MHz |
| FIPS 197 Compliant | Certificate No. 3352 |
| Dimensions | 3.5" x 5.4" x 1.3" |
| Operating Environment | Indoor use only; 32-120°F (0-49°C), 0-85% humidity (non-condensing) |
| Supplied Antenna | Dipole screw-on |
| Power/I-O Connections | 4-position plug-in terminals |
| LAN | RJ45 10/100 receptacle |
| RS232 Input Port | 3-wire serial to DB9M cable |
| USB Serial Port | Type "B" USB Mini |
Included accessory: 36" max. 3-wire RS232 serial-to-DB9M cable (to M1 Control). Optional accessory: ELK-USBCM USB Serial A to mini-B cable, 60", black.
b — Bars of cell signal, followed by a single digit 0-5 (e.g., "b 3" = 3 bars).
| Code | Meaning |
|---|---|
| E01 | Application not loaded |
| E02 | Radio Module Power Fail |
| E03 | No SIM card installed |
| E04 | Inactive Unit |
| E05 | Low (Poor) Signal Strength |
| E06 | No Service or unregistered on Cell Network |
| E07 | Unable to communicate with M1 |
| E08 | Cellular radio module not detected |
| E09 | No Internet Service (LAN detected) |
| E10 | No LAN detected (check cable) |
| E11 | Central Station not configured in ElkLink |
| E12 | CS Receiver failed to respond |
| E13 | No DHCP Server found |
A — LAN IP address, displayed one character at a time during the first 2 minutes after power-up (IPv4, 4 octets separated by decimal points, e.g. "A 192.168.0.100"). Note: CS reports take priority over the LAN IP display, which can make it difficult to view the address sequentially during power-up; the display may be manually restarted by removing the cover and pressing the small tamper switch 5 times quickly.
Communications activity indicators: "0" = clockwise rotation of the outer 6 display elements for Central Station comms (decimal point illuminates if sent via IP/Ethernet). "8" = figure-8 circulation of all 7 elements for ElkLink comms. "o" = clockwise rotation of the lower 4 elements for USB serial comms.
CAUTION: Do NOT apply power to the C1M1 until after it has been activated on Telguard, registered in ElkLink, and connected serially to a working M1 Control Panel. Premature power application may cause the unit to be temporarily blocked by the cell carrier network.
One-time event; skip if already registered. Registration must be completed prior to installing any devices — set up at least 1 day before the job site visit. Go to www.telguardonline.com, select Dealer Sign-up, fill out the form, and accept the services agreement. You can also call Telguard Customer Service at 678-945-1651. Expect an acknowledgment with a Dealer Account Number within 1 business day.
One-time event; skip if already registered. Set up at least 1 day before the job site visit. Contact Elk Products and ask for Customer or Technical Service; using the same account number as your Telguard account is recommended for simplicity. The C1M1 can only be activated after accounting info is in the Telguard Communication Center and Central Station info is in the ElkLink database.
Always check cellular signal strength at the proposed mounting location before permanent attachment, by temporarily powering the unit and holding it near the location while monitoring bars. A minimum of "b2" is suggested. Caution: smartphones display voice signal strength, not data signal strength — do not rely on them.
Mounting considerations: Do not mount within 20cm (8 inches) of where persons might regularly be. Prefer the highest point of a building or fewest walls to the nearest cell tower. Avoid mounting near other electronic devices. The included antenna is for indoor installations only. Always mount with the antenna perpendicular to the ground (never horizontal).
C1M1 mounts in the top right corner of the M1 Control enclosure. Perform a radio signal strength test prior to permanent mounting.
Wiring Connections (make certain M1 and C1M1 are unpowered while wiring):
A completed subscriber registration is required before activating any C1M1 unit. Telguard Technical Service is open 8:00 AM–8:00 PM EST Mon-Fri, 9:00 AM–5:00 PM EST Sat, closed major holidays; after-hours forms process by 9:00 AM EST the next business day.
Note: IP encryption is a device option that cannot be set from this screen — it's programmed by manually editing the device after activation. The Central Station typically assigns the encryption key (32 hex digits), though some allow you to choose your own.
Only Telephone #1 must be programmed to use the C1M1. This can be done via Keypad Installer Level programming or ElkRP PC software.
Keypad Installer Level Programming: Enter Installer Level (ELK, 9, RIGHT arrow, Installer code), navigate to Menu 08 (Telephone Account Setup):
Note: the other 7 telephone numbers can still be used for legacy dialing over POTS if available; Telephone #2 could serve as a digital dialer backup. Reporting codes are set in Menus 09-13; a value of 00 means the code will not be reported.
ElkRP Programming Software: download from elkproducts.com, connect to the M1, and program: Telephone #1 Priority = "Always Report", Format = IP (6), Dial Attempts ≥ 01, checkboxes for each Reporting event type and Area/partition, and reporting codes under Communicator. Send to Control when done (ElkRP must be connected). Two connection methods: (1) Local Connect via USB (Serial A to USB Mini B) from PC to C1M1's USB port — select On-site Local, then PC USB Port TO Device USB; (2) Remote Connect via Elk's Cloud Proxy — select Network Proxy and log in with ElkLink credentials. Legacy methods (Local IP connect via LAN, or Local RS232 which disrupts the M1-C1M1 connection) are also still supported. Note: ElkRP's C1M1 setup button is not used — all C1M1 setup (IP, Acct number, Port, DNIS) is managed via the ElkLink portal.
Trip several alarms on the M1 Control and confirm the Central Station receives them. If signal transmission is unreliable: recheck signal strength (need at least "b2"), and check that the antenna connector is screwed on and seated correctly.
FCC and IC Compliance: Uses approved radio NL-SW-LTE-GELS3. Contains FCC ID: QIPELS31-V (LTE Radio Module). Complies with Part 15 of the FCC Rules — operation subject to (1) no harmful interference caused, (2) must accept any interference received. Any change or modification not expressly approved by Elk Products may void FCC authorization. This equipment should be installed and operated with a minimum 20cm distance between the equipment and the user's body. Tested and found to comply with Class B digital device limits under Part 15 of the FCC Rules, designed to provide reasonable protection against harmful interference in a residential installation. If interference to radio/TV reception occurs, try reorienting the receiving antenna, increasing separation, connecting to a different outlet circuit, or consulting a technician.
FIPS 197 Compliance: The ELK-C1M1 LTEV incorporates a Freescale Kinetis with mmCAU and implements the Elk Crypto Library using AES 128/192/256 encryption for line security. Validated by NIST under FIPS 197, Certificate #3352, issued May 8, 2015.
Network (Port) Requirements (disregard for cellular-only mode): No inbound port forwarding is needed — C1M1 initiates all connections outbound. Firewalls may need outbound rules for: Ports 3061 and 3071 (outbound UDP, to Central Station IP Receiver — verify actual ports with your Central Station); Port 8888 (outbound TCP, to ElkLink backend server for CS reporting parameters and ElkLink Mobile connectivity — must remain open even if Mobile is disabled); Port 8899 (outbound TCP, needed for ElkRP Remote Programming or third-party apps eKeypad/M1TouchPro via ElkLink proxy).
The ELKC1M1 LTEV ElkCommBd Communicator is warranted to be free from defects in materials and workmanship for 2 years from date of manufacture. Refer to Elk's website for the full warranty statement and details.
Elk Products, Inc. — PO Box 100, 3266 US Hwy 70 West, Hildebran, NC 28637. Phone 828-397-4200, Fax 828-397-4415. www.elkproducts.com
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